19924816

素因数分解:

$2^4\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:212

約数の個数: 60

約数和(自身を含む): 42636160

約数和(自身を除く): 22711344

約数列:

[1, 2, 4, 8, 16, 17, 31, 34, 62, 68, 124, 136, 139, 248, 272, 278, 289, 496, 527, 556, 578, 1054, 1112, 1156, 2108, 2224, 2312, 2363, 4216, 4309, 4624, 4726, 8432, 8618, 8959, 9452, 17236, 17918, 18904, 34472, 35836, 37808, 40171, 68944, 71672, 73253, 80342, 143344, 146506, 160684, 293012, 321368, 586024, 642736, 1172048, 1245301, 2490602, 4981204, 9962408, 19924816]

約数ペア:

[(1, 19924816), (2, 9962408), (4, 4981204), (8, 2490602), (16, 1245301), (17, 1172048), (31, 642736), (34, 586024), (62, 321368), (68, 293012), (124, 160684), (136, 146506), (139, 143344), (248, 80342), (272, 73253), (278, 71672), (289, 68944), (496, 40171), (527, 37808), (556, 35836), (578, 34472), (1054, 18904), (1112, 17918), (1156, 17236), (2108, 9452), (2224, 8959), (2312, 8618), (2363, 8432), (4216, 4726), (4309, 4624)]