138900840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{269}}^1\times {\mathrm{331}}^1$

素因数の和:627

約数の個数: 128

約数和(自身を含む): 451785600

約数和(自身を除く): 312884760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 269, 312, 331, 390, 520, 538, 662, 780, 807, 993, 1076, 1324, 1345, 1560, 1614, 1655, 1986, 2152, 2648, 2690, 3228, 3310, 3497, 3972, 4035, 4303, 4965, 5380, 6456, 6620, 6994, 7944, 8070, 8606, 9930, 10491, 10760, 12909, 13240, 13988, 16140, 17212, 17485, 19860, 20982, 21515, 25818, 27976, 32280, 34424, 34970, 39720, 41964, 43030, 51636, 52455, 64545, 69940, 83928, 86060, 89039, 103272, 104910, 129090, 139880, 172120, 178078, 209820, 258180, 267117, 356156, 419640, 445195, 516360, 534234, 712312, 890390, 1068468, 1157507, 1335585, 1780780, 2136936, 2315014, 2671170, 3472521, 3561560, 4630028, 5342340, 5787535, 6945042, 9260056, 10684680, 11575070, 13890084, 17362605, 23150140, 27780168, 34725210, 46300280, 69450420, 138900840]

約数ペア:

[(1, 138900840), (2, 69450420), (3, 46300280), (4, 34725210), (5, 27780168), (6, 23150140), (8, 17362605), (10, 13890084), (12, 11575070), (13, 10684680), (15, 9260056), (20, 6945042), (24, 5787535), (26, 5342340), (30, 4630028), (39, 3561560), (40, 3472521), (52, 2671170), (60, 2315014), (65, 2136936), (78, 1780780), (104, 1335585), (120, 1157507), (130, 1068468), (156, 890390), (195, 712312), (260, 534234), (269, 516360), (312, 445195), (331, 419640), (390, 356156), (520, 267117), (538, 258180), (662, 209820), (780, 178078), (807, 172120), (993, 139880), (1076, 129090), (1324, 104910), (1345, 103272), (1560, 89039), (1614, 86060), (1655, 83928), (1986, 69940), (2152, 64545), (2648, 52455), (2690, 51636), (3228, 43030), (3310, 41964), (3497, 39720), (3972, 34970), (4035, 34424), (4303, 32280), (4965, 27976), (5380, 25818), (6456, 21515), (6620, 20982), (6994, 19860), (7944, 17485), (8070, 17212), (8606, 16140), (9930, 13988), (10491, 13240), (10760, 12909)]