31905180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{491}}^1$

素因数の和:544

約数の個数: 108

約数和(自身を含む): 102348792

約数和(自身を除く): 70443612

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 361, 380, 491, 570, 684, 722, 855, 982, 1083, 1140, 1444, 1473, 1710, 1805, 1964, 2166, 2455, 2946, 3249, 3420, 3610, 4332, 4419, 4910, 5415, 5892, 6498, 7220, 7365, 8838, 9329, 9820, 10830, 12996, 14730, 16245, 17676, 18658, 21660, 22095, 27987, 29460, 32490, 37316, 44190, 46645, 55974, 64980, 83961, 88380, 93290, 111948, 139935, 167922, 177251, 186580, 279870, 335844, 354502, 419805, 531753, 559740, 709004, 839610, 886255, 1063506, 1595259, 1679220, 1772510, 2127012, 2658765, 3190518, 3545020, 5317530, 6381036, 7976295, 10635060, 15952590, 31905180]

約数ペア:

[(1, 31905180), (2, 15952590), (3, 10635060), (4, 7976295), (5, 6381036), (6, 5317530), (9, 3545020), (10, 3190518), (12, 2658765), (15, 2127012), (18, 1772510), (19, 1679220), (20, 1595259), (30, 1063506), (36, 886255), (38, 839610), (45, 709004), (57, 559740), (60, 531753), (76, 419805), (90, 354502), (95, 335844), (114, 279870), (171, 186580), (180, 177251), (190, 167922), (228, 139935), (285, 111948), (342, 93290), (361, 88380), (380, 83961), (491, 64980), (570, 55974), (684, 46645), (722, 44190), (855, 37316), (982, 32490), (1083, 29460), (1140, 27987), (1444, 22095), (1473, 21660), (1710, 18658), (1805, 17676), (1964, 16245), (2166, 14730), (2455, 12996), (2946, 10830), (3249, 9820), (3420, 9329), (3610, 8838), (4332, 7365), (4419, 7220), (4910, 6498), (5415, 5892)]