888957680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{691}}^1\times {\mathrm{1237}}^1$

素因数の和:1954

約数の個数: 80

約数和(自身を含む): 2230836384

約数和(自身を除く): 1341878704

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 691, 1040, 1237, 1382, 2474, 2764, 3455, 4948, 5528, 6185, 6910, 8983, 9896, 11056, 12370, 13820, 16081, 17966, 19792, 24740, 27640, 32162, 35932, 44915, 49480, 55280, 64324, 71864, 80405, 89830, 98960, 128648, 143728, 160810, 179660, 257296, 321620, 359320, 643240, 718640, 854767, 1286480, 1709534, 3419068, 4273835, 6838136, 8547670, 11111971, 13676272, 17095340, 22223942, 34190680, 44447884, 55559855, 68381360, 88895768, 111119710, 177791536, 222239420, 444478840, 888957680]

約数ペア:

[(1, 888957680), (2, 444478840), (4, 222239420), (5, 177791536), (8, 111119710), (10, 88895768), (13, 68381360), (16, 55559855), (20, 44447884), (26, 34190680), (40, 22223942), (52, 17095340), (65, 13676272), (80, 11111971), (104, 8547670), (130, 6838136), (208, 4273835), (260, 3419068), (520, 1709534), (691, 1286480), (1040, 854767), (1237, 718640), (1382, 643240), (2474, 359320), (2764, 321620), (3455, 257296), (4948, 179660), (5528, 160810), (6185, 143728), (6910, 128648), (8983, 98960), (9896, 89830), (11056, 80405), (12370, 71864), (13820, 64324), (16081, 55280), (17966, 49480), (19792, 44915), (24740, 35932), (27640, 32162)]