1721493240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{11287}}^1$

素因数の和:11373

約数の個数: 128

約数和(自身を含む): 5461585920

約数和(自身を除く): 3740092680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 41, 60, 62, 82, 93, 120, 123, 124, 155, 164, 186, 205, 246, 248, 310, 328, 372, 410, 465, 492, 615, 620, 744, 820, 930, 984, 1230, 1240, 1271, 1640, 1860, 2460, 2542, 3720, 3813, 4920, 5084, 6355, 7626, 10168, 11287, 12710, 15252, 19065, 22574, 25420, 30504, 33861, 38130, 45148, 50840, 56435, 67722, 76260, 90296, 112870, 135444, 152520, 169305, 225740, 270888, 338610, 349897, 451480, 462767, 677220, 699794, 925534, 1049691, 1354440, 1388301, 1399588, 1749485, 1851068, 2099382, 2313835, 2776602, 2799176, 3498970, 3702136, 4198764, 4627670, 5248455, 5553204, 6941505, 6997940, 8397528, 9255340, 10496910, 11106408, 13883010, 13995880, 14345777, 18510680, 20993820, 27766020, 28691554, 41987640, 43037331, 55532040, 57383108, 71728885, 86074662, 114766216, 143457770, 172149324, 215186655, 286915540, 344298648, 430373310, 573831080, 860746620, 1721493240]

約数ペア:

[(1, 1721493240), (2, 860746620), (3, 573831080), (4, 430373310), (5, 344298648), (6, 286915540), (8, 215186655), (10, 172149324), (12, 143457770), (15, 114766216), (20, 86074662), (24, 71728885), (30, 57383108), (31, 55532040), (40, 43037331), (41, 41987640), (60, 28691554), (62, 27766020), (82, 20993820), (93, 18510680), (120, 14345777), (123, 13995880), (124, 13883010), (155, 11106408), (164, 10496910), (186, 9255340), (205, 8397528), (246, 6997940), (248, 6941505), (310, 5553204), (328, 5248455), (372, 4627670), (410, 4198764), (465, 3702136), (492, 3498970), (615, 2799176), (620, 2776602), (744, 2313835), (820, 2099382), (930, 1851068), (984, 1749485), (1230, 1399588), (1240, 1388301), (1271, 1354440), (1640, 1049691), (1860, 925534), (2460, 699794), (2542, 677220), (3720, 462767), (3813, 451480), (4920, 349897), (5084, 338610), (6355, 270888), (7626, 225740), (10168, 169305), (11287, 152520), (12710, 135444), (15252, 112870), (19065, 90296), (22574, 76260), (25420, 67722), (30504, 56435), (33861, 50840), (38130, 45148)]