40831960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:221

約数の個数: 128

約数和(自身を含む): 108864000

約数和(自身を除く): 68032040

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 31, 34, 40, 52, 62, 65, 68, 85, 104, 124, 130, 136, 149, 155, 170, 221, 248, 260, 298, 310, 340, 403, 442, 520, 527, 596, 620, 680, 745, 806, 884, 1054, 1105, 1192, 1240, 1490, 1612, 1768, 1937, 2015, 2108, 2210, 2533, 2635, 2980, 3224, 3874, 4030, 4216, 4420, 4619, 5066, 5270, 5960, 6851, 7748, 8060, 8840, 9238, 9685, 10132, 10540, 12665, 13702, 15496, 16120, 18476, 19370, 20264, 21080, 23095, 25330, 27404, 32929, 34255, 36952, 38740, 46190, 50660, 54808, 60047, 65858, 68510, 77480, 78523, 92380, 101320, 120094, 131716, 137020, 157046, 164645, 184760, 240188, 263432, 274040, 300235, 314092, 329290, 392615, 480376, 600470, 628184, 658580, 785230, 1020799, 1200940, 1317160, 1570460, 2041598, 2401880, 3140920, 4083196, 5103995, 8166392, 10207990, 20415980, 40831960]

約数ペア:

[(1, 40831960), (2, 20415980), (4, 10207990), (5, 8166392), (8, 5103995), (10, 4083196), (13, 3140920), (17, 2401880), (20, 2041598), (26, 1570460), (31, 1317160), (34, 1200940), (40, 1020799), (52, 785230), (62, 658580), (65, 628184), (68, 600470), (85, 480376), (104, 392615), (124, 329290), (130, 314092), (136, 300235), (149, 274040), (155, 263432), (170, 240188), (221, 184760), (248, 164645), (260, 157046), (298, 137020), (310, 131716), (340, 120094), (403, 101320), (442, 92380), (520, 78523), (527, 77480), (596, 68510), (620, 65858), (680, 60047), (745, 54808), (806, 50660), (884, 46190), (1054, 38740), (1105, 36952), (1192, 34255), (1240, 32929), (1490, 27404), (1612, 25330), (1768, 23095), (1937, 21080), (2015, 20264), (2108, 19370), (2210, 18476), (2533, 16120), (2635, 15496), (2980, 13702), (3224, 12665), (3874, 10540), (4030, 10132), (4216, 9685), (4420, 9238), (4619, 8840), (5066, 8060), (5270, 7748), (5960, 6851)]