140924980

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{20543}}^1$

素因数の和:20573

約数の個数: 48

約数和(自身を含む): 345139200

約数和(自身を除く): 204214220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 3430, 6860, 20543, 41086, 82172, 102715, 143801, 205430, 287602, 410860, 575204, 719005, 1006607, 1438010, 2013214, 2876020, 4026428, 5033035, 7046249, 10066070, 14092498, 20132140, 28184996, 35231245, 70462490, 140924980]

約数ペア:

[(1, 140924980), (2, 70462490), (4, 35231245), (5, 28184996), (7, 20132140), (10, 14092498), (14, 10066070), (20, 7046249), (28, 5033035), (35, 4026428), (49, 2876020), (70, 2013214), (98, 1438010), (140, 1006607), (196, 719005), (245, 575204), (343, 410860), (490, 287602), (686, 205430), (980, 143801), (1372, 102715), (1715, 82172), (3430, 41086), (6860, 20543)]