81828040

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{83}}^1\times {\mathrm{503}}^1$

素因数の和:611

約数の個数: 96

約数和(自身を含む): 217183680

約数和(自身を除く): 135355640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 83, 98, 140, 166, 196, 245, 280, 332, 392, 415, 490, 503, 581, 664, 830, 980, 1006, 1162, 1660, 1960, 2012, 2324, 2515, 2905, 3320, 3521, 4024, 4067, 4648, 5030, 5810, 7042, 8134, 10060, 11620, 14084, 16268, 17605, 20120, 20335, 23240, 24647, 28168, 32536, 35210, 40670, 41749, 49294, 70420, 81340, 83498, 98588, 123235, 140840, 162680, 166996, 197176, 208745, 246470, 292243, 333992, 417490, 492940, 584486, 834980, 985880, 1168972, 1461215, 1669960, 2045701, 2337944, 2922430, 4091402, 5844860, 8182804, 10228505, 11689720, 16365608, 20457010, 40914020, 81828040]

約数ペア:

[(1, 81828040), (2, 40914020), (4, 20457010), (5, 16365608), (7, 11689720), (8, 10228505), (10, 8182804), (14, 5844860), (20, 4091402), (28, 2922430), (35, 2337944), (40, 2045701), (49, 1669960), (56, 1461215), (70, 1168972), (83, 985880), (98, 834980), (140, 584486), (166, 492940), (196, 417490), (245, 333992), (280, 292243), (332, 246470), (392, 208745), (415, 197176), (490, 166996), (503, 162680), (581, 140840), (664, 123235), (830, 98588), (980, 83498), (1006, 81340), (1162, 70420), (1660, 49294), (1960, 41749), (2012, 40670), (2324, 35210), (2515, 32536), (2905, 28168), (3320, 24647), (3521, 23240), (4024, 20335), (4067, 20120), (4648, 17605), (5030, 16268), (5810, 14084), (7042, 11620), (8134, 10060)]