198389620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{977}}^1$

素因数の和:1081

約数の個数: 96

約数和(自身を含む): 496855296

約数和(自身を除く): 298465676

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 71, 110, 130, 142, 143, 220, 260, 284, 286, 355, 572, 710, 715, 781, 923, 977, 1420, 1430, 1562, 1846, 1954, 2860, 3124, 3692, 3905, 3908, 4615, 4885, 7810, 9230, 9770, 10153, 10747, 12701, 15620, 18460, 19540, 20306, 21494, 25402, 40612, 42988, 50765, 50804, 53735, 63505, 69367, 101530, 107470, 127010, 138734, 139711, 203060, 214940, 254020, 277468, 279422, 346835, 558844, 693670, 698555, 763037, 901771, 1387340, 1397110, 1526074, 1803542, 2794220, 3052148, 3607084, 3815185, 4508855, 7630370, 9017710, 9919481, 15260740, 18035420, 19838962, 39677924, 49597405, 99194810, 198389620]

約数ペア:

[(1, 198389620), (2, 99194810), (4, 49597405), (5, 39677924), (10, 19838962), (11, 18035420), (13, 15260740), (20, 9919481), (22, 9017710), (26, 7630370), (44, 4508855), (52, 3815185), (55, 3607084), (65, 3052148), (71, 2794220), (110, 1803542), (130, 1526074), (142, 1397110), (143, 1387340), (220, 901771), (260, 763037), (284, 698555), (286, 693670), (355, 558844), (572, 346835), (710, 279422), (715, 277468), (781, 254020), (923, 214940), (977, 203060), (1420, 139711), (1430, 138734), (1562, 127010), (1846, 107470), (1954, 101530), (2860, 69367), (3124, 63505), (3692, 53735), (3905, 50804), (3908, 50765), (4615, 42988), (4885, 40612), (7810, 25402), (9230, 21494), (9770, 20306), (10153, 19540), (10747, 18460), (12701, 15620)]