489948800

素因数分解:

$2^7\times 5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{449}}^1$

素因数の和:515

約数の個数: 192

約数和(自身を含む): 1365984000

約数和(自身を除く): 876035200

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 31, 32, 40, 44, 50, 55, 62, 64, 80, 88, 100, 110, 124, 128, 155, 160, 176, 200, 220, 248, 275, 310, 320, 341, 352, 400, 440, 449, 496, 550, 620, 640, 682, 704, 775, 800, 880, 898, 992, 1100, 1240, 1364, 1408, 1550, 1600, 1705, 1760, 1796, 1984, 2200, 2245, 2480, 2728, 3100, 3200, 3410, 3520, 3592, 3968, 4400, 4490, 4939, 4960, 5456, 6200, 6820, 7040, 7184, 8525, 8800, 8980, 9878, 9920, 10912, 11225, 12400, 13640, 13919, 14368, 17050, 17600, 17960, 19756, 19840, 21824, 22450, 24695, 24800, 27280, 27838, 28736, 34100, 35200, 35920, 39512, 43648, 44900, 49390, 49600, 54560, 55676, 57472, 68200, 69595, 71840, 79024, 89800, 98780, 99200, 109120, 111352, 123475, 136400, 139190, 143680, 153109, 158048, 179600, 197560, 218240, 222704, 246950, 272800, 278380, 287360, 306218, 316096, 347975, 359200, 395120, 445408, 493900, 545600, 556760, 612436, 632192, 695950, 718400, 765545, 790240, 890816, 987800, 1091200, 1113520, 1224872, 1391900, 1436800, 1531090, 1580480, 1781632, 1975600, 2227040, 2449744, 2783800, 3062180, 3160960, 3827725, 3951200, 4454080, 4899488, 5567600, 6124360, 7655450, 7902400, 8908160, 9798976, 11135200, 12248720, 15310900, 15804800, 19597952, 22270400, 24497440, 30621800, 44540800, 48994880, 61243600, 97989760, 122487200, 244974400, 489948800]

約数ペア:

[(1, 489948800), (2, 244974400), (4, 122487200), (5, 97989760), (8, 61243600), (10, 48994880), (11, 44540800), (16, 30621800), (20, 24497440), (22, 22270400), (25, 19597952), (31, 15804800), (32, 15310900), (40, 12248720), (44, 11135200), (50, 9798976), (55, 8908160), (62, 7902400), (64, 7655450), (80, 6124360), (88, 5567600), (100, 4899488), (110, 4454080), (124, 3951200), (128, 3827725), (155, 3160960), (160, 3062180), (176, 2783800), (200, 2449744), (220, 2227040), (248, 1975600), (275, 1781632), (310, 1580480), (320, 1531090), (341, 1436800), (352, 1391900), (400, 1224872), (440, 1113520), (449, 1091200), (496, 987800), (550, 890816), (620, 790240), (640, 765545), (682, 718400), (704, 695950), (775, 632192), (800, 612436), (880, 556760), (898, 545600), (992, 493900), (1100, 445408), (1240, 395120), (1364, 359200), (1408, 347975), (1550, 316096), (1600, 306218), (1705, 287360), (1760, 278380), (1796, 272800), (1984, 246950), (2200, 222704), (2245, 218240), (2480, 197560), (2728, 179600), (3100, 158048), (3200, 153109), (3410, 143680), (3520, 139190), (3592, 136400), (3968, 123475), (4400, 111352), (4490, 109120), (4939, 99200), (4960, 98780), (5456, 89800), (6200, 79024), (6820, 71840), (7040, 69595), (7184, 68200), (8525, 57472), (8800, 55676), (8980, 54560), (9878, 49600), (9920, 49390), (10912, 44900), (11225, 43648), (12400, 39512), (13640, 35920), (13919, 35200), (14368, 34100), (17050, 28736), (17600, 27838), (17960, 27280), (19756, 24800), (19840, 24695), (21824, 22450)]