25721010

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{439}}^1$

素因数の和:493

約数の個数: 128

約数和(自身を含む): 81100800

約数和(自身を除く): 55379790

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 31, 35, 42, 45, 54, 62, 63, 70, 90, 93, 105, 126, 135, 155, 186, 189, 210, 217, 270, 279, 310, 315, 378, 434, 439, 465, 558, 630, 651, 837, 878, 930, 945, 1085, 1302, 1317, 1395, 1674, 1890, 1953, 2170, 2195, 2634, 2790, 3073, 3255, 3906, 3951, 4185, 4390, 5859, 6146, 6510, 6585, 7902, 8370, 9219, 9765, 11718, 11853, 13170, 13609, 15365, 18438, 19530, 19755, 23706, 27218, 27657, 29295, 30730, 39510, 40827, 46095, 55314, 58590, 59265, 68045, 81654, 82971, 92190, 95263, 118530, 122481, 136090, 138285, 165942, 190526, 204135, 244962, 276570, 285789, 367443, 408270, 414855, 476315, 571578, 612405, 734886, 829710, 857367, 952630, 1224810, 1428945, 1714734, 1837215, 2572101, 2857890, 3674430, 4286835, 5144202, 8573670, 12860505, 25721010]

約数ペア:

[(1, 25721010), (2, 12860505), (3, 8573670), (5, 5144202), (6, 4286835), (7, 3674430), (9, 2857890), (10, 2572101), (14, 1837215), (15, 1714734), (18, 1428945), (21, 1224810), (27, 952630), (30, 857367), (31, 829710), (35, 734886), (42, 612405), (45, 571578), (54, 476315), (62, 414855), (63, 408270), (70, 367443), (90, 285789), (93, 276570), (105, 244962), (126, 204135), (135, 190526), (155, 165942), (186, 138285), (189, 136090), (210, 122481), (217, 118530), (270, 95263), (279, 92190), (310, 82971), (315, 81654), (378, 68045), (434, 59265), (439, 58590), (465, 55314), (558, 46095), (630, 40827), (651, 39510), (837, 30730), (878, 29295), (930, 27657), (945, 27218), (1085, 23706), (1302, 19755), (1317, 19530), (1395, 18438), (1674, 15365), (1890, 13609), (1953, 13170), (2170, 11853), (2195, 11718), (2634, 9765), (2790, 9219), (3073, 8370), (3255, 7902), (3906, 6585), (3951, 6510), (4185, 6146), (4390, 5859)]