20678041600

素因数分解:

$2^{13}\times 5^2\times {\mathrm{31}}^1\times {\mathrm{3257}}^1$

素因数の和:3324

約数の個数: 168

約数和(自身を含む): 52948807488

約数和(自身を除く): 32270765888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 80, 100, 124, 128, 155, 160, 200, 248, 256, 310, 320, 400, 496, 512, 620, 640, 775, 800, 992, 1024, 1240, 1280, 1550, 1600, 1984, 2048, 2480, 2560, 3100, 3200, 3257, 3968, 4096, 4960, 5120, 6200, 6400, 6514, 7936, 8192, 9920, 10240, 12400, 12800, 13028, 15872, 16285, 19840, 20480, 24800, 25600, 26056, 31744, 32570, 39680, 40960, 49600, 51200, 52112, 63488, 65140, 79360, 81425, 99200, 100967, 102400, 104224, 126976, 130280, 158720, 162850, 198400, 201934, 204800, 208448, 253952, 260560, 317440, 325700, 396800, 403868, 416896, 504835, 521120, 634880, 651400, 793600, 807736, 833792, 1009670, 1042240, 1269760, 1302800, 1587200, 1615472, 1667584, 2019340, 2084480, 2524175, 2605600, 3174400, 3230944, 3335168, 4038680, 4168960, 5048350, 5211200, 6348800, 6461888, 6670336, 8077360, 8337920, 10096700, 10422400, 12923776, 13340672, 16154720, 16675840, 20193400, 20844800, 25847552, 26681344, 32309440, 33351680, 40386800, 41689600, 51695104, 64618880, 66703360, 80773600, 83379200, 103390208, 129237760, 133406720, 161547200, 166758400, 206780416, 258475520, 323094400, 333516800, 413560832, 516951040, 646188800, 667033600, 827121664, 1033902080, 1292377600, 2067804160, 2584755200, 4135608320, 5169510400, 10339020800, 20678041600]

約数ペア:

[(1, 20678041600), (2, 10339020800), (4, 5169510400), (5, 4135608320), (8, 2584755200), (10, 2067804160), (16, 1292377600), (20, 1033902080), (25, 827121664), (31, 667033600), (32, 646188800), (40, 516951040), (50, 413560832), (62, 333516800), (64, 323094400), (80, 258475520), (100, 206780416), (124, 166758400), (128, 161547200), (155, 133406720), (160, 129237760), (200, 103390208), (248, 83379200), (256, 80773600), (310, 66703360), (320, 64618880), (400, 51695104), (496, 41689600), (512, 40386800), (620, 33351680), (640, 32309440), (775, 26681344), (800, 25847552), (992, 20844800), (1024, 20193400), (1240, 16675840), (1280, 16154720), (1550, 13340672), (1600, 12923776), (1984, 10422400), (2048, 10096700), (2480, 8337920), (2560, 8077360), (3100, 6670336), (3200, 6461888), (3257, 6348800), (3968, 5211200), (4096, 5048350), (4960, 4168960), (5120, 4038680), (6200, 3335168), (6400, 3230944), (6514, 3174400), (7936, 2605600), (8192, 2524175), (9920, 2084480), (10240, 2019340), (12400, 1667584), (12800, 1615472), (13028, 1587200), (15872, 1302800), (16285, 1269760), (19840, 1042240), (20480, 1009670), (24800, 833792), (25600, 807736), (26056, 793600), (31744, 651400), (32570, 634880), (39680, 521120), (40960, 504835), (49600, 416896), (51200, 403868), (52112, 396800), (63488, 325700), (65140, 317440), (79360, 260560), (81425, 253952), (99200, 208448), (100967, 204800), (102400, 201934), (104224, 198400), (126976, 162850), (130280, 158720)]