31385640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1$

素因数の和:128

約数の個数: 256

約数和(自身を含む): 116121600

約数和(自身を除く): 84735960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 13, 15, 20, 22, 24, 26, 30, 31, 33, 39, 40, 44, 52, 55, 59, 60, 62, 65, 66, 78, 88, 93, 104, 110, 118, 120, 124, 130, 132, 143, 155, 156, 165, 177, 186, 195, 220, 236, 248, 260, 264, 286, 295, 310, 312, 330, 341, 354, 372, 390, 403, 429, 440, 465, 472, 520, 572, 590, 620, 649, 660, 682, 708, 715, 744, 767, 780, 806, 858, 885, 930, 1023, 1144, 1180, 1209, 1240, 1298, 1320, 1364, 1416, 1430, 1534, 1560, 1612, 1705, 1716, 1770, 1829, 1860, 1947, 2015, 2046, 2145, 2301, 2360, 2418, 2596, 2728, 2860, 3068, 3224, 3245, 3410, 3432, 3540, 3658, 3720, 3835, 3894, 4030, 4092, 4290, 4433, 4602, 4836, 5115, 5192, 5487, 5720, 6045, 6136, 6490, 6820, 7080, 7316, 7670, 7788, 8060, 8184, 8437, 8580, 8866, 9145, 9204, 9672, 9735, 10230, 10974, 11505, 12090, 12980, 13299, 13640, 14632, 15340, 15576, 16120, 16874, 17160, 17732, 18290, 18408, 19470, 20119, 20460, 21948, 22165, 23010, 23777, 24180, 25311, 25960, 26598, 27435, 30680, 33748, 35464, 36580, 38940, 40238, 40920, 42185, 43896, 44330, 46020, 47554, 48360, 50622, 53196, 54870, 60357, 66495, 67496, 71331, 73160, 77880, 80476, 84370, 88660, 92040, 95108, 100595, 101244, 106392, 109740, 118885, 120714, 126555, 132990, 142662, 160952, 168740, 177320, 190216, 201190, 202488, 219480, 237770, 241428, 253110, 261547, 265980, 285324, 301785, 337480, 356655, 402380, 475540, 482856, 506220, 523094, 531960, 570648, 603570, 713310, 784641, 804760, 951080, 1012440, 1046188, 1207140, 1307735, 1426620, 1569282, 2092376, 2414280, 2615470, 2853240, 3138564, 3923205, 5230940, 6277128, 7846410, 10461880, 15692820, 31385640]

約数ペア:

[(1, 31385640), (2, 15692820), (3, 10461880), (4, 7846410), (5, 6277128), (6, 5230940), (8, 3923205), (10, 3138564), (11, 2853240), (12, 2615470), (13, 2414280), (15, 2092376), (20, 1569282), (22, 1426620), (24, 1307735), (26, 1207140), (30, 1046188), (31, 1012440), (33, 951080), (39, 804760), (40, 784641), (44, 713310), (52, 603570), (55, 570648), (59, 531960), (60, 523094), (62, 506220), (65, 482856), (66, 475540), (78, 402380), (88, 356655), (93, 337480), (104, 301785), (110, 285324), (118, 265980), (120, 261547), (124, 253110), (130, 241428), (132, 237770), (143, 219480), (155, 202488), (156, 201190), (165, 190216), (177, 177320), (186, 168740), (195, 160952), (220, 142662), (236, 132990), (248, 126555), (260, 120714), (264, 118885), (286, 109740), (295, 106392), (310, 101244), (312, 100595), (330, 95108), (341, 92040), (354, 88660), (372, 84370), (390, 80476), (403, 77880), (429, 73160), (440, 71331), (465, 67496), (472, 66495), (520, 60357), (572, 54870), (590, 53196), (620, 50622), (649, 48360), (660, 47554), (682, 46020), (708, 44330), (715, 43896), (744, 42185), (767, 40920), (780, 40238), (806, 38940), (858, 36580), (885, 35464), (930, 33748), (1023, 30680), (1144, 27435), (1180, 26598), (1209, 25960), (1240, 25311), (1298, 24180), (1320, 23777), (1364, 23010), (1416, 22165), (1430, 21948), (1534, 20460), (1560, 20119), (1612, 19470), (1705, 18408), (1716, 18290), (1770, 17732), (1829, 17160), (1860, 16874), (1947, 16120), (2015, 15576), (2046, 15340), (2145, 14632), (2301, 13640), (2360, 13299), (2418, 12980), (2596, 12090), (2728, 11505), (2860, 10974), (3068, 10230), (3224, 9735), (3245, 9672), (3410, 9204), (3432, 9145), (3540, 8866), (3658, 8580), (3720, 8437), (3835, 8184), (3894, 8060), (4030, 7788), (4092, 7670), (4290, 7316), (4433, 7080), (4602, 6820), (4836, 6490), (5115, 6136), (5192, 6045), (5487, 5720)]