18824940

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{491}}^1$

素因数の和:580

約数の個数: 96

約数和(自身を含む): 59512320

約数和(自身を除く): 40687380

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 71, 90, 108, 135, 142, 180, 213, 270, 284, 355, 426, 491, 540, 639, 710, 852, 982, 1065, 1278, 1420, 1473, 1917, 1964, 2130, 2455, 2556, 2946, 3195, 3834, 4260, 4419, 4910, 5892, 6390, 7365, 7668, 8838, 9585, 9820, 12780, 13257, 14730, 17676, 19170, 22095, 26514, 29460, 34861, 38340, 44190, 53028, 66285, 69722, 88380, 104583, 132570, 139444, 174305, 209166, 265140, 313749, 348610, 418332, 522915, 627498, 697220, 941247, 1045830, 1254996, 1568745, 1882494, 2091660, 3137490, 3764988, 4706235, 6274980, 9412470, 18824940]

約数ペア:

[(1, 18824940), (2, 9412470), (3, 6274980), (4, 4706235), (5, 3764988), (6, 3137490), (9, 2091660), (10, 1882494), (12, 1568745), (15, 1254996), (18, 1045830), (20, 941247), (27, 697220), (30, 627498), (36, 522915), (45, 418332), (54, 348610), (60, 313749), (71, 265140), (90, 209166), (108, 174305), (135, 139444), (142, 132570), (180, 104583), (213, 88380), (270, 69722), (284, 66285), (355, 53028), (426, 44190), (491, 38340), (540, 34861), (639, 29460), (710, 26514), (852, 22095), (982, 19170), (1065, 17676), (1278, 14730), (1420, 13257), (1473, 12780), (1917, 9820), (1964, 9585), (2130, 8838), (2455, 7668), (2556, 7365), (2946, 6390), (3195, 5892), (3834, 4910), (4260, 4419)]