20866650

素因数分解:

$2^1\times 3^1\times 5^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{167}}^1$

素因数の和:213

約数の個数: 144

約数和(自身を含む): 64120896

約数和(自身を除く): 43254246

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 17, 21, 25, 30, 34, 35, 42, 49, 50, 51, 70, 75, 85, 98, 102, 105, 119, 147, 150, 167, 170, 175, 210, 238, 245, 255, 294, 334, 350, 357, 425, 490, 501, 510, 525, 595, 714, 735, 833, 835, 850, 1002, 1050, 1169, 1190, 1225, 1275, 1470, 1666, 1670, 1785, 2338, 2450, 2499, 2505, 2550, 2839, 2975, 3507, 3570, 3675, 4165, 4175, 4998, 5010, 5678, 5845, 5950, 7014, 7350, 8183, 8330, 8350, 8517, 8925, 11690, 12495, 12525, 14195, 16366, 17034, 17535, 17850, 19873, 20825, 24549, 24990, 25050, 28390, 29225, 35070, 39746, 40915, 41650, 42585, 49098, 58450, 59619, 62475, 70975, 81830, 85170, 87675, 99365, 119238, 122745, 124950, 139111, 141950, 175350, 198730, 204575, 212925, 245490, 278222, 298095, 409150, 417333, 425850, 496825, 596190, 613725, 695555, 834666, 993650, 1227450, 1391110, 1490475, 2086665, 2980950, 3477775, 4173330, 6955550, 10433325, 20866650]

約数ペア:

[(1, 20866650), (2, 10433325), (3, 6955550), (5, 4173330), (6, 3477775), (7, 2980950), (10, 2086665), (14, 1490475), (15, 1391110), (17, 1227450), (21, 993650), (25, 834666), (30, 695555), (34, 613725), (35, 596190), (42, 496825), (49, 425850), (50, 417333), (51, 409150), (70, 298095), (75, 278222), (85, 245490), (98, 212925), (102, 204575), (105, 198730), (119, 175350), (147, 141950), (150, 139111), (167, 124950), (170, 122745), (175, 119238), (210, 99365), (238, 87675), (245, 85170), (255, 81830), (294, 70975), (334, 62475), (350, 59619), (357, 58450), (425, 49098), (490, 42585), (501, 41650), (510, 40915), (525, 39746), (595, 35070), (714, 29225), (735, 28390), (833, 25050), (835, 24990), (850, 24549), (1002, 20825), (1050, 19873), (1169, 17850), (1190, 17535), (1225, 17034), (1275, 16366), (1470, 14195), (1666, 12525), (1670, 12495), (1785, 11690), (2338, 8925), (2450, 8517), (2499, 8350), (2505, 8330), (2550, 8183), (2839, 7350), (2975, 7014), (3507, 5950), (3570, 5845), (3675, 5678), (4165, 5010), (4175, 4998)]