64706720

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^2\times {\mathrm{2393}}^1$

素因数の和:2434

約数の個数: 72

約数和(自身を含む): 165602556

約数和(自身を除く): 100895836

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 169, 208, 260, 338, 416, 520, 676, 845, 1040, 1352, 1690, 2080, 2393, 2704, 3380, 4786, 5408, 6760, 9572, 11965, 13520, 19144, 23930, 27040, 31109, 38288, 47860, 62218, 76576, 95720, 124436, 155545, 191440, 248872, 311090, 382880, 404417, 497744, 622180, 808834, 995488, 1244360, 1617668, 2022085, 2488720, 3235336, 4044170, 4977440, 6470672, 8088340, 12941344, 16176680, 32353360, 64706720]

約数ペア:

[(1, 64706720), (2, 32353360), (4, 16176680), (5, 12941344), (8, 8088340), (10, 6470672), (13, 4977440), (16, 4044170), (20, 3235336), (26, 2488720), (32, 2022085), (40, 1617668), (52, 1244360), (65, 995488), (80, 808834), (104, 622180), (130, 497744), (160, 404417), (169, 382880), (208, 311090), (260, 248872), (338, 191440), (416, 155545), (520, 124436), (676, 95720), (845, 76576), (1040, 62218), (1352, 47860), (1690, 38288), (2080, 31109), (2393, 27040), (2704, 23930), (3380, 19144), (4786, 13520), (5408, 11965), (6760, 9572)]