640910400

素因数分解:

$2^6\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{10271}}^1$

素因数の和:10309

約数の個数: 168

約数和(自身を含む): 2264688384

約数和(自身を除く): 1623777984

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 25, 26, 30, 32, 39, 40, 48, 50, 52, 60, 64, 65, 75, 78, 80, 96, 100, 104, 120, 130, 150, 156, 160, 192, 195, 200, 208, 240, 260, 300, 312, 320, 325, 390, 400, 416, 480, 520, 600, 624, 650, 780, 800, 832, 960, 975, 1040, 1200, 1248, 1300, 1560, 1600, 1950, 2080, 2400, 2496, 2600, 3120, 3900, 4160, 4800, 5200, 6240, 7800, 10271, 10400, 12480, 15600, 20542, 20800, 30813, 31200, 41084, 51355, 61626, 62400, 82168, 102710, 123252, 133523, 154065, 164336, 205420, 246504, 256775, 267046, 308130, 328672, 400569, 410840, 493008, 513550, 534092, 616260, 657344, 667615, 770325, 801138, 821680, 986016, 1027100, 1068184, 1232520, 1335230, 1540650, 1602276, 1643360, 1972032, 2002845, 2054200, 2136368, 2465040, 2670460, 3081300, 3204552, 3286720, 3338075, 4005690, 4108400, 4272736, 4930080, 5340920, 6162600, 6409104, 6676150, 8011380, 8216800, 8545472, 9860160, 10014225, 10681840, 12325200, 12818208, 13352300, 16022760, 16433600, 20028450, 21363680, 24650400, 25636416, 26704600, 32045520, 40056900, 42727360, 49300800, 53409200, 64091040, 80113800, 106818400, 128182080, 160227600, 213636800, 320455200, 640910400]

約数ペア:

[(1, 640910400), (2, 320455200), (3, 213636800), (4, 160227600), (5, 128182080), (6, 106818400), (8, 80113800), (10, 64091040), (12, 53409200), (13, 49300800), (15, 42727360), (16, 40056900), (20, 32045520), (24, 26704600), (25, 25636416), (26, 24650400), (30, 21363680), (32, 20028450), (39, 16433600), (40, 16022760), (48, 13352300), (50, 12818208), (52, 12325200), (60, 10681840), (64, 10014225), (65, 9860160), (75, 8545472), (78, 8216800), (80, 8011380), (96, 6676150), (100, 6409104), (104, 6162600), (120, 5340920), (130, 4930080), (150, 4272736), (156, 4108400), (160, 4005690), (192, 3338075), (195, 3286720), (200, 3204552), (208, 3081300), (240, 2670460), (260, 2465040), (300, 2136368), (312, 2054200), (320, 2002845), (325, 1972032), (390, 1643360), (400, 1602276), (416, 1540650), (480, 1335230), (520, 1232520), (600, 1068184), (624, 1027100), (650, 986016), (780, 821680), (800, 801138), (832, 770325), (960, 667615), (975, 657344), (1040, 616260), (1200, 534092), (1248, 513550), (1300, 493008), (1560, 410840), (1600, 400569), (1950, 328672), (2080, 308130), (2400, 267046), (2496, 256775), (2600, 246504), (3120, 205420), (3900, 164336), (4160, 154065), (4800, 133523), (5200, 123252), (6240, 102710), (7800, 82168), (10271, 62400), (10400, 61626), (12480, 51355), (15600, 41084), (20542, 31200), (20800, 30813)]