20270720

素因数分解:

$2^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1667}}^1$

素因数の和:1705

約数の個数: 64

約数和(自身を含む): 51040800

約数和(自身を除く): 30770080

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 304, 320, 380, 608, 640, 760, 1216, 1520, 1667, 2432, 3040, 3334, 6080, 6668, 8335, 12160, 13336, 16670, 26672, 31673, 33340, 53344, 63346, 66680, 106688, 126692, 133360, 158365, 213376, 253384, 266720, 316730, 506768, 533440, 633460, 1013536, 1066880, 1266920, 2027072, 2533840, 4054144, 5067680, 10135360, 20270720]

約数ペア:

[(1, 20270720), (2, 10135360), (4, 5067680), (5, 4054144), (8, 2533840), (10, 2027072), (16, 1266920), (19, 1066880), (20, 1013536), (32, 633460), (38, 533440), (40, 506768), (64, 316730), (76, 266720), (80, 253384), (95, 213376), (128, 158365), (152, 133360), (160, 126692), (190, 106688), (304, 66680), (320, 63346), (380, 53344), (608, 33340), (640, 31673), (760, 26672), (1216, 16670), (1520, 13336), (1667, 12160), (2432, 8335), (3040, 6668), (3334, 6080)]