28816840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{367}}^1$

素因数の和:542

約数の個数: 64

約数和(自身を含む): 70479360

約数和(自身を除く): 41662520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 151, 260, 302, 367, 520, 604, 734, 755, 1208, 1468, 1510, 1835, 1963, 2936, 3020, 3670, 3926, 4771, 6040, 7340, 7852, 9542, 9815, 14680, 15704, 19084, 19630, 23855, 38168, 39260, 47710, 55417, 78520, 95420, 110834, 190840, 221668, 277085, 443336, 554170, 720421, 1108340, 1440842, 2216680, 2881684, 3602105, 5763368, 7204210, 14408420, 28816840]

約数ペア:

[(1, 28816840), (2, 14408420), (4, 7204210), (5, 5763368), (8, 3602105), (10, 2881684), (13, 2216680), (20, 1440842), (26, 1108340), (40, 720421), (52, 554170), (65, 443336), (104, 277085), (130, 221668), (151, 190840), (260, 110834), (302, 95420), (367, 78520), (520, 55417), (604, 47710), (734, 39260), (755, 38168), (1208, 23855), (1468, 19630), (1510, 19084), (1835, 15704), (1963, 14680), (2936, 9815), (3020, 9542), (3670, 7852), (3926, 7340), (4771, 6040)]