1645519760

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^2\times {\mathrm{103}}^1\times {\mathrm{691}}^1$

素因数の和:841

約数の個数: 120

約数和(自身を含む): 4109516736

約数和(自身を除く): 2463996976

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 103, 136, 170, 206, 272, 289, 340, 412, 515, 578, 680, 691, 824, 1030, 1156, 1360, 1382, 1445, 1648, 1751, 2060, 2312, 2764, 2890, 3455, 3502, 4120, 4624, 5528, 5780, 6910, 7004, 8240, 8755, 11056, 11560, 11747, 13820, 14008, 17510, 23120, 23494, 27640, 28016, 29767, 35020, 46988, 55280, 58735, 59534, 70040, 71173, 93976, 117470, 119068, 140080, 142346, 148835, 187952, 199699, 234940, 238136, 284692, 297670, 355865, 399398, 469880, 476272, 569384, 595340, 711730, 798796, 939760, 998495, 1138768, 1190680, 1209941, 1423460, 1597592, 1996990, 2381360, 2419882, 2846920, 3195184, 3993980, 4839764, 5693840, 6049705, 7987960, 9679528, 12099410, 15975920, 19359056, 20568997, 24198820, 41137994, 48397640, 82275988, 96795280, 102844985, 164551976, 205689970, 329103952, 411379940, 822759880, 1645519760]

約数ペア:

[(1, 1645519760), (2, 822759880), (4, 411379940), (5, 329103952), (8, 205689970), (10, 164551976), (16, 102844985), (17, 96795280), (20, 82275988), (34, 48397640), (40, 41137994), (68, 24198820), (80, 20568997), (85, 19359056), (103, 15975920), (136, 12099410), (170, 9679528), (206, 7987960), (272, 6049705), (289, 5693840), (340, 4839764), (412, 3993980), (515, 3195184), (578, 2846920), (680, 2419882), (691, 2381360), (824, 1996990), (1030, 1597592), (1156, 1423460), (1360, 1209941), (1382, 1190680), (1445, 1138768), (1648, 998495), (1751, 939760), (2060, 798796), (2312, 711730), (2764, 595340), (2890, 569384), (3455, 476272), (3502, 469880), (4120, 399398), (4624, 355865), (5528, 297670), (5780, 284692), (6910, 238136), (7004, 234940), (8240, 199699), (8755, 187952), (11056, 148835), (11560, 142346), (11747, 140080), (13820, 119068), (14008, 117470), (17510, 93976), (23120, 71173), (23494, 70040), (27640, 59534), (28016, 58735), (29767, 55280), (35020, 46988)]