648738660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{61}}^1\times {\mathrm{491}}^1$

素因数の和:602

約数の個数: 144

約数和(自身を含む): 1952500032

約数和(自身を除く): 1303761372

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 61, 76, 95, 114, 122, 183, 190, 228, 244, 285, 305, 361, 366, 380, 491, 570, 610, 722, 732, 915, 982, 1083, 1140, 1159, 1220, 1444, 1473, 1805, 1830, 1964, 2166, 2318, 2455, 2946, 3477, 3610, 3660, 4332, 4636, 4910, 5415, 5795, 5892, 6954, 7220, 7365, 9329, 9820, 10830, 11590, 13908, 14730, 17385, 18658, 21660, 22021, 23180, 27987, 29460, 29951, 34770, 37316, 44042, 46645, 55974, 59902, 66063, 69540, 88084, 89853, 93290, 110105, 111948, 119804, 132126, 139935, 149755, 177251, 179706, 186580, 220210, 264252, 279870, 299510, 330315, 354502, 359412, 440420, 449265, 531753, 559740, 569069, 599020, 660630, 709004, 886255, 898530, 1063506, 1138138, 1321260, 1707207, 1772510, 1797060, 2127012, 2276276, 2658765, 2845345, 3414414, 3545020, 5317530, 5690690, 6828828, 8536035, 10635060, 10812311, 11381380, 17072070, 21624622, 32436933, 34144140, 43249244, 54061555, 64873866, 108123110, 129747732, 162184665, 216246220, 324369330, 648738660]

約数ペア:

[(1, 648738660), (2, 324369330), (3, 216246220), (4, 162184665), (5, 129747732), (6, 108123110), (10, 64873866), (12, 54061555), (15, 43249244), (19, 34144140), (20, 32436933), (30, 21624622), (38, 17072070), (57, 11381380), (60, 10812311), (61, 10635060), (76, 8536035), (95, 6828828), (114, 5690690), (122, 5317530), (183, 3545020), (190, 3414414), (228, 2845345), (244, 2658765), (285, 2276276), (305, 2127012), (361, 1797060), (366, 1772510), (380, 1707207), (491, 1321260), (570, 1138138), (610, 1063506), (722, 898530), (732, 886255), (915, 709004), (982, 660630), (1083, 599020), (1140, 569069), (1159, 559740), (1220, 531753), (1444, 449265), (1473, 440420), (1805, 359412), (1830, 354502), (1964, 330315), (2166, 299510), (2318, 279870), (2455, 264252), (2946, 220210), (3477, 186580), (3610, 179706), (3660, 177251), (4332, 149755), (4636, 139935), (4910, 132126), (5415, 119804), (5795, 111948), (5892, 110105), (6954, 93290), (7220, 89853), (7365, 88084), (9329, 69540), (9820, 66063), (10830, 59902), (11590, 55974), (13908, 46645), (14730, 44042), (17385, 37316), (18658, 34770), (21660, 29951), (22021, 29460), (23180, 27987)]