81676920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1277}}^1$

素因数の和:1345

約数の個数: 128

約数和(自身を含む): 270527040

約数和(自身を除く): 188850120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 41, 52, 60, 65, 78, 82, 104, 120, 123, 130, 156, 164, 195, 205, 246, 260, 312, 328, 390, 410, 492, 520, 533, 615, 780, 820, 984, 1066, 1230, 1277, 1560, 1599, 1640, 2132, 2460, 2554, 2665, 3198, 3831, 4264, 4920, 5108, 5330, 6385, 6396, 7662, 7995, 10216, 10660, 12770, 12792, 15324, 15990, 16601, 19155, 21320, 25540, 30648, 31980, 33202, 38310, 49803, 51080, 52357, 63960, 66404, 76620, 83005, 99606, 104714, 132808, 153240, 157071, 166010, 199212, 209428, 249015, 261785, 314142, 332020, 398424, 418856, 498030, 523570, 628284, 664040, 680641, 785355, 996060, 1047140, 1256568, 1361282, 1570710, 1992120, 2041923, 2094280, 2722564, 3141420, 3403205, 4083846, 5445128, 6282840, 6806410, 8167692, 10209615, 13612820, 16335384, 20419230, 27225640, 40838460, 81676920]

約数ペア:

[(1, 81676920), (2, 40838460), (3, 27225640), (4, 20419230), (5, 16335384), (6, 13612820), (8, 10209615), (10, 8167692), (12, 6806410), (13, 6282840), (15, 5445128), (20, 4083846), (24, 3403205), (26, 3141420), (30, 2722564), (39, 2094280), (40, 2041923), (41, 1992120), (52, 1570710), (60, 1361282), (65, 1256568), (78, 1047140), (82, 996060), (104, 785355), (120, 680641), (123, 664040), (130, 628284), (156, 523570), (164, 498030), (195, 418856), (205, 398424), (246, 332020), (260, 314142), (312, 261785), (328, 249015), (390, 209428), (410, 199212), (492, 166010), (520, 157071), (533, 153240), (615, 132808), (780, 104714), (820, 99606), (984, 83005), (1066, 76620), (1230, 66404), (1277, 63960), (1560, 52357), (1599, 51080), (1640, 49803), (2132, 38310), (2460, 33202), (2554, 31980), (2665, 30648), (3198, 25540), (3831, 21320), (4264, 19155), (4920, 16601), (5108, 15990), (5330, 15324), (6385, 12792), (6396, 12770), (7662, 10660), (7995, 10216)]