331578100

素因数分解:

$2^2\times 5^2\times 7^4\times {\mathrm{1381}}^1$

素因数の和:1423

約数の個数: 90

約数和(自身を含む): 840003094

約数和(自身を除く): 508424994

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 140, 175, 196, 245, 343, 350, 490, 686, 700, 980, 1225, 1372, 1381, 1715, 2401, 2450, 2762, 3430, 4802, 4900, 5524, 6860, 6905, 8575, 9604, 9667, 12005, 13810, 17150, 19334, 24010, 27620, 34300, 34525, 38668, 48020, 48335, 60025, 67669, 69050, 96670, 120050, 135338, 138100, 193340, 240100, 241675, 270676, 338345, 473683, 483350, 676690, 947366, 966700, 1353380, 1691725, 1894732, 2368415, 3315781, 3383450, 4736830, 6631562, 6766900, 9473660, 11842075, 13263124, 16578905, 23684150, 33157810, 47368300, 66315620, 82894525, 165789050, 331578100]

約数ペア:

[(1, 331578100), (2, 165789050), (4, 82894525), (5, 66315620), (7, 47368300), (10, 33157810), (14, 23684150), (20, 16578905), (25, 13263124), (28, 11842075), (35, 9473660), (49, 6766900), (50, 6631562), (70, 4736830), (98, 3383450), (100, 3315781), (140, 2368415), (175, 1894732), (196, 1691725), (245, 1353380), (343, 966700), (350, 947366), (490, 676690), (686, 483350), (700, 473683), (980, 338345), (1225, 270676), (1372, 241675), (1381, 240100), (1715, 193340), (2401, 138100), (2450, 135338), (2762, 120050), (3430, 96670), (4802, 69050), (4900, 67669), (5524, 60025), (6860, 48335), (6905, 48020), (8575, 38668), (9604, 34525), (9667, 34300), (12005, 27620), (13810, 24010), (17150, 19334)]