2018389960

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{283}}^1$

素因数の和:471

約数の個数: 128

約数和(自身を含む): 4817548800

約数和(自身を除く): 2799158840

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 61, 74, 79, 122, 148, 158, 185, 244, 283, 296, 305, 316, 370, 395, 488, 566, 610, 632, 740, 790, 1132, 1220, 1415, 1480, 1580, 2257, 2264, 2440, 2830, 2923, 3160, 4514, 4819, 5660, 5846, 9028, 9638, 10471, 11285, 11320, 11692, 14615, 17263, 18056, 19276, 20942, 22357, 22570, 23384, 24095, 29230, 34526, 38552, 41884, 44714, 45140, 48190, 52355, 58460, 69052, 83768, 86315, 89428, 90280, 96380, 104710, 111785, 116920, 138104, 172630, 178303, 178856, 192760, 209420, 223570, 345260, 356606, 418840, 447140, 638731, 690520, 713212, 827209, 891515, 894280, 1277462, 1363777, 1426424, 1654418, 1783030, 2554924, 2727554, 3193655, 3308836, 3566060, 4136045, 5109848, 5455108, 6387310, 6617672, 6818885, 7132120, 8272090, 10910216, 12774620, 13637770, 16544180, 25549240, 27275540, 33088360, 50459749, 54551080, 100919498, 201838996, 252298745, 403677992, 504597490, 1009194980, 2018389960]

約数ペア:

[(1, 2018389960), (2, 1009194980), (4, 504597490), (5, 403677992), (8, 252298745), (10, 201838996), (20, 100919498), (37, 54551080), (40, 50459749), (61, 33088360), (74, 27275540), (79, 25549240), (122, 16544180), (148, 13637770), (158, 12774620), (185, 10910216), (244, 8272090), (283, 7132120), (296, 6818885), (305, 6617672), (316, 6387310), (370, 5455108), (395, 5109848), (488, 4136045), (566, 3566060), (610, 3308836), (632, 3193655), (740, 2727554), (790, 2554924), (1132, 1783030), (1220, 1654418), (1415, 1426424), (1480, 1363777), (1580, 1277462), (2257, 894280), (2264, 891515), (2440, 827209), (2830, 713212), (2923, 690520), (3160, 638731), (4514, 447140), (4819, 418840), (5660, 356606), (5846, 345260), (9028, 223570), (9638, 209420), (10471, 192760), (11285, 178856), (11320, 178303), (11692, 172630), (14615, 138104), (17263, 116920), (18056, 111785), (19276, 104710), (20942, 96380), (22357, 90280), (22570, 89428), (23384, 86315), (24095, 83768), (29230, 69052), (34526, 58460), (38552, 52355), (41884, 48190), (44714, 45140)]