81238240

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29867}}^1$

素因数の和:29899

約数の個数: 48

約数和(自身を含む): 203221872

約数和(自身を除く): 121983632

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 160, 170, 272, 340, 544, 680, 1360, 2720, 29867, 59734, 119468, 149335, 238936, 298670, 477872, 507739, 597340, 955744, 1015478, 1194680, 2030956, 2389360, 2538695, 4061912, 4778720, 5077390, 8123824, 10154780, 16247648, 20309560, 40619120, 81238240]

約数ペア:

[(1, 81238240), (2, 40619120), (4, 20309560), (5, 16247648), (8, 10154780), (10, 8123824), (16, 5077390), (17, 4778720), (20, 4061912), (32, 2538695), (34, 2389360), (40, 2030956), (68, 1194680), (80, 1015478), (85, 955744), (136, 597340), (160, 507739), (170, 477872), (272, 298670), (340, 238936), (544, 149335), (680, 119468), (1360, 59734), (2720, 29867)]