1520771720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{2423}}^1$

素因数の和:2535

約数の個数: 128

約数和(自身を含む): 3958295040

約数和(自身を除く): 2437523320

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 71, 85, 104, 130, 136, 142, 170, 221, 260, 284, 340, 355, 442, 520, 568, 680, 710, 884, 923, 1105, 1207, 1420, 1768, 1846, 2210, 2414, 2423, 2840, 3692, 4420, 4615, 4828, 4846, 6035, 7384, 8840, 9230, 9656, 9692, 12070, 12115, 15691, 18460, 19384, 24140, 24230, 31382, 31499, 36920, 41191, 48280, 48460, 62764, 62998, 78455, 82382, 96920, 125528, 125996, 156910, 157495, 164764, 172033, 205955, 251992, 313820, 314990, 329528, 344066, 411910, 535483, 627640, 629980, 688132, 823820, 860165, 1070966, 1259960, 1376264, 1647640, 1720330, 2141932, 2236429, 2677415, 2924561, 3440660, 4283864, 4472858, 5354830, 5849122, 6881320, 8945716, 10709660, 11182145, 11698244, 14622805, 17891432, 21419320, 22364290, 23396488, 29245610, 38019293, 44728580, 58491220, 76038586, 89457160, 116982440, 152077172, 190096465, 304154344, 380192930, 760385860, 1520771720]

約数ペア:

[(1, 1520771720), (2, 760385860), (4, 380192930), (5, 304154344), (8, 190096465), (10, 152077172), (13, 116982440), (17, 89457160), (20, 76038586), (26, 58491220), (34, 44728580), (40, 38019293), (52, 29245610), (65, 23396488), (68, 22364290), (71, 21419320), (85, 17891432), (104, 14622805), (130, 11698244), (136, 11182145), (142, 10709660), (170, 8945716), (221, 6881320), (260, 5849122), (284, 5354830), (340, 4472858), (355, 4283864), (442, 3440660), (520, 2924561), (568, 2677415), (680, 2236429), (710, 2141932), (884, 1720330), (923, 1647640), (1105, 1376264), (1207, 1259960), (1420, 1070966), (1768, 860165), (1846, 823820), (2210, 688132), (2414, 629980), (2423, 627640), (2840, 535483), (3692, 411910), (4420, 344066), (4615, 329528), (4828, 314990), (4846, 313820), (6035, 251992), (7384, 205955), (8840, 172033), (9230, 164764), (9656, 157495), (9692, 156910), (12070, 125996), (12115, 125528), (15691, 96920), (18460, 82382), (19384, 78455), (24140, 62998), (24230, 62764), (31382, 48460), (31499, 48280), (36920, 41191)]