648169900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{317}}^1$

素因数の和:488

約数の個数: 144

約数和(自身を含む): 1695891456

約数和(自身を除く): 1047721556

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 25, 28, 35, 46, 50, 70, 92, 100, 115, 127, 140, 161, 175, 230, 254, 317, 322, 350, 460, 508, 575, 634, 635, 644, 700, 805, 889, 1150, 1268, 1270, 1585, 1610, 1778, 2219, 2300, 2540, 2921, 3170, 3175, 3220, 3556, 4025, 4438, 4445, 5842, 6340, 6350, 7291, 7925, 8050, 8876, 8890, 11095, 11684, 12700, 14582, 14605, 15850, 16100, 17780, 20447, 22190, 22225, 29164, 29210, 31700, 36455, 40259, 40894, 44380, 44450, 51037, 55475, 58420, 72910, 73025, 80518, 81788, 88900, 102074, 102235, 110950, 145820, 146050, 161036, 182275, 201295, 204148, 204470, 221900, 255185, 281813, 292100, 364550, 402590, 408940, 510370, 511175, 563626, 729100, 805180, 925957, 1006475, 1020740, 1022350, 1127252, 1275925, 1409065, 1851914, 2012950, 2044700, 2551850, 2818130, 3703828, 4025900, 4629785, 5103700, 5636260, 6481699, 7045325, 9259570, 12963398, 14090650, 18519140, 23148925, 25926796, 28181300, 32408495, 46297850, 64816990, 92595700, 129633980, 162042475, 324084950, 648169900]

約数ペア:

[(1, 648169900), (2, 324084950), (4, 162042475), (5, 129633980), (7, 92595700), (10, 64816990), (14, 46297850), (20, 32408495), (23, 28181300), (25, 25926796), (28, 23148925), (35, 18519140), (46, 14090650), (50, 12963398), (70, 9259570), (92, 7045325), (100, 6481699), (115, 5636260), (127, 5103700), (140, 4629785), (161, 4025900), (175, 3703828), (230, 2818130), (254, 2551850), (317, 2044700), (322, 2012950), (350, 1851914), (460, 1409065), (508, 1275925), (575, 1127252), (634, 1022350), (635, 1020740), (644, 1006475), (700, 925957), (805, 805180), (889, 729100), (1150, 563626), (1268, 511175), (1270, 510370), (1585, 408940), (1610, 402590), (1778, 364550), (2219, 292100), (2300, 281813), (2540, 255185), (2921, 221900), (3170, 204470), (3175, 204148), (3220, 201295), (3556, 182275), (4025, 161036), (4438, 146050), (4445, 145820), (5842, 110950), (6340, 102235), (6350, 102074), (7291, 88900), (7925, 81788), (8050, 80518), (8876, 73025), (8890, 72910), (11095, 58420), (11684, 55475), (12700, 51037), (14582, 44450), (14605, 44380), (15850, 40894), (16100, 40259), (17780, 36455), (20447, 31700), (22190, 29210), (22225, 29164)]