2556840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1$

素因数の和:187

約数の個数: 128

約数和(自身を含む): 9072000

約数和(自身を除く): 6515160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 13, 15, 20, 22, 24, 26, 30, 33, 39, 40, 44, 52, 55, 60, 65, 66, 78, 88, 104, 110, 120, 130, 132, 143, 149, 156, 165, 195, 220, 260, 264, 286, 298, 312, 330, 390, 429, 440, 447, 520, 572, 596, 660, 715, 745, 780, 858, 894, 1144, 1192, 1320, 1430, 1490, 1560, 1639, 1716, 1788, 1937, 2145, 2235, 2860, 2980, 3278, 3432, 3576, 3874, 4290, 4470, 4917, 5720, 5811, 5960, 6556, 7748, 8195, 8580, 8940, 9685, 9834, 11622, 13112, 15496, 16390, 17160, 17880, 19370, 19668, 21307, 23244, 24585, 29055, 32780, 38740, 39336, 42614, 46488, 49170, 58110, 63921, 65560, 77480, 85228, 98340, 106535, 116220, 127842, 170456, 196680, 213070, 232440, 255684, 319605, 426140, 511368, 639210, 852280, 1278420, 2556840]

約数ペア:

[(1, 2556840), (2, 1278420), (3, 852280), (4, 639210), (5, 511368), (6, 426140), (8, 319605), (10, 255684), (11, 232440), (12, 213070), (13, 196680), (15, 170456), (20, 127842), (22, 116220), (24, 106535), (26, 98340), (30, 85228), (33, 77480), (39, 65560), (40, 63921), (44, 58110), (52, 49170), (55, 46488), (60, 42614), (65, 39336), (66, 38740), (78, 32780), (88, 29055), (104, 24585), (110, 23244), (120, 21307), (130, 19668), (132, 19370), (143, 17880), (149, 17160), (156, 16390), (165, 15496), (195, 13112), (220, 11622), (260, 9834), (264, 9685), (286, 8940), (298, 8580), (312, 8195), (330, 7748), (390, 6556), (429, 5960), (440, 5811), (447, 5720), (520, 4917), (572, 4470), (596, 4290), (660, 3874), (715, 3576), (745, 3432), (780, 3278), (858, 2980), (894, 2860), (1144, 2235), (1192, 2145), (1320, 1937), (1430, 1788), (1490, 1716), (1560, 1639)]