20259780260

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{889367}}^1$

素因数の和:889460

約数の個数: 48

約数和(自身を含む): 45720630144

約数和(自身を除く): 25460849884

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 67, 68, 85, 134, 170, 268, 335, 340, 670, 1139, 1340, 2278, 4556, 5695, 11390, 22780, 889367, 1778734, 3557468, 4446835, 8893670, 15119239, 17787340, 30238478, 59587589, 60476956, 75596195, 119175178, 151192390, 238350356, 297937945, 302384780, 595875890, 1012989013, 1191751780, 2025978026, 4051956052, 5064945065, 10129890130, 20259780260]

約数ペア:

[(1, 20259780260), (2, 10129890130), (4, 5064945065), (5, 4051956052), (10, 2025978026), (17, 1191751780), (20, 1012989013), (34, 595875890), (67, 302384780), (68, 297937945), (85, 238350356), (134, 151192390), (170, 119175178), (268, 75596195), (335, 60476956), (340, 59587589), (670, 30238478), (1139, 17787340), (1340, 15119239), (2278, 8893670), (4556, 4446835), (5695, 3557468), (11390, 1778734), (22780, 889367)]