84405880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1$

素因数の和:209

約数の個数: 128

約数和(自身を含む): 217183680

約数和(自身を除く): 132777800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 37, 40, 41, 52, 65, 74, 82, 104, 107, 130, 148, 164, 185, 205, 214, 260, 296, 328, 370, 410, 428, 481, 520, 533, 535, 740, 820, 856, 962, 1066, 1070, 1391, 1480, 1517, 1640, 1924, 2132, 2140, 2405, 2665, 2782, 3034, 3848, 3959, 4264, 4280, 4387, 4810, 5330, 5564, 6068, 6955, 7585, 7918, 8774, 9620, 10660, 11128, 12136, 13910, 15170, 15836, 17548, 19240, 19721, 19795, 21320, 21935, 27820, 30340, 31672, 35096, 39442, 39590, 43870, 51467, 55640, 57031, 60680, 78884, 79180, 87740, 98605, 102934, 114062, 157768, 158360, 162319, 175480, 197210, 205868, 228124, 257335, 285155, 324638, 394420, 411736, 456248, 514670, 570310, 649276, 788840, 811595, 1029340, 1140620, 1298552, 1623190, 2058680, 2110147, 2281240, 3246380, 4220294, 6492760, 8440588, 10550735, 16881176, 21101470, 42202940, 84405880]

約数ペア:

[(1, 84405880), (2, 42202940), (4, 21101470), (5, 16881176), (8, 10550735), (10, 8440588), (13, 6492760), (20, 4220294), (26, 3246380), (37, 2281240), (40, 2110147), (41, 2058680), (52, 1623190), (65, 1298552), (74, 1140620), (82, 1029340), (104, 811595), (107, 788840), (130, 649276), (148, 570310), (164, 514670), (185, 456248), (205, 411736), (214, 394420), (260, 324638), (296, 285155), (328, 257335), (370, 228124), (410, 205868), (428, 197210), (481, 175480), (520, 162319), (533, 158360), (535, 157768), (740, 114062), (820, 102934), (856, 98605), (962, 87740), (1066, 79180), (1070, 78884), (1391, 60680), (1480, 57031), (1517, 55640), (1640, 51467), (1924, 43870), (2132, 39590), (2140, 39442), (2405, 35096), (2665, 31672), (2782, 30340), (3034, 27820), (3848, 21935), (3959, 21320), (4264, 19795), (4280, 19721), (4387, 19240), (4810, 17548), (5330, 15836), (5564, 15170), (6068, 13910), (6955, 12136), (7585, 11128), (7918, 10660), (8774, 9620)]