2020398640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1061}}^1\times {\mathrm{1831}}^1$

素因数の和:2918

約数の個数: 80

約数和(自身を含む): 5066300736

約数和(自身を除く): 3045902096

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 1061, 1831, 2122, 3662, 4244, 5305, 7324, 8488, 9155, 10610, 13793, 14648, 16976, 18310, 21220, 23803, 27586, 29296, 36620, 42440, 47606, 55172, 68965, 73240, 84880, 95212, 110344, 119015, 137930, 146480, 190424, 220688, 238030, 275860, 380848, 476060, 551720, 952120, 1103440, 1904240, 1942691, 3885382, 7770764, 9713455, 15541528, 19426910, 25254983, 31083056, 38853820, 50509966, 77707640, 101019932, 126274915, 155415280, 202039864, 252549830, 404079728, 505099660, 1010199320, 2020398640]

約数ペア:

[(1, 2020398640), (2, 1010199320), (4, 505099660), (5, 404079728), (8, 252549830), (10, 202039864), (13, 155415280), (16, 126274915), (20, 101019932), (26, 77707640), (40, 50509966), (52, 38853820), (65, 31083056), (80, 25254983), (104, 19426910), (130, 15541528), (208, 9713455), (260, 7770764), (520, 3885382), (1040, 1942691), (1061, 1904240), (1831, 1103440), (2122, 952120), (3662, 551720), (4244, 476060), (5305, 380848), (7324, 275860), (8488, 238030), (9155, 220688), (10610, 190424), (13793, 146480), (14648, 137930), (16976, 119015), (18310, 110344), (21220, 95212), (23803, 84880), (27586, 73240), (29296, 68965), (36620, 55172), (42440, 47606)]