18812040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{389}}^1$

素因数の和:447

約数の個数: 128

約数和(自身を含む): 62899200

約数和(自身を除く): 44087160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 31, 39, 40, 52, 60, 62, 65, 78, 93, 104, 120, 124, 130, 155, 156, 186, 195, 248, 260, 310, 312, 372, 389, 390, 403, 465, 520, 620, 744, 778, 780, 806, 930, 1167, 1209, 1240, 1556, 1560, 1612, 1860, 1945, 2015, 2334, 2418, 3112, 3224, 3720, 3890, 4030, 4668, 4836, 5057, 5835, 6045, 7780, 8060, 9336, 9672, 10114, 11670, 12059, 12090, 15171, 15560, 16120, 20228, 23340, 24118, 24180, 25285, 30342, 36177, 40456, 46680, 48236, 48360, 50570, 60295, 60684, 72354, 75855, 96472, 101140, 120590, 121368, 144708, 151710, 156767, 180885, 202280, 241180, 289416, 303420, 313534, 361770, 470301, 482360, 606840, 627068, 723540, 783835, 940602, 1254136, 1447080, 1567670, 1881204, 2351505, 3135340, 3762408, 4703010, 6270680, 9406020, 18812040]

約数ペア:

[(1, 18812040), (2, 9406020), (3, 6270680), (4, 4703010), (5, 3762408), (6, 3135340), (8, 2351505), (10, 1881204), (12, 1567670), (13, 1447080), (15, 1254136), (20, 940602), (24, 783835), (26, 723540), (30, 627068), (31, 606840), (39, 482360), (40, 470301), (52, 361770), (60, 313534), (62, 303420), (65, 289416), (78, 241180), (93, 202280), (104, 180885), (120, 156767), (124, 151710), (130, 144708), (155, 121368), (156, 120590), (186, 101140), (195, 96472), (248, 75855), (260, 72354), (310, 60684), (312, 60295), (372, 50570), (389, 48360), (390, 48236), (403, 46680), (465, 40456), (520, 36177), (620, 30342), (744, 25285), (778, 24180), (780, 24118), (806, 23340), (930, 20228), (1167, 16120), (1209, 15560), (1240, 15171), (1556, 12090), (1560, 12059), (1612, 11670), (1860, 10114), (1945, 9672), (2015, 9336), (2334, 8060), (2418, 7780), (3112, 6045), (3224, 5835), (3720, 5057), (3890, 4836), (4030, 4668)]