78578420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{967}}^1$

素因数の和:1232

約数の個数: 48

約数和(自身を含む): 175633920

約数和(自身を除く): 97055500

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 239, 340, 478, 956, 967, 1195, 1934, 2390, 3868, 4063, 4780, 4835, 8126, 9670, 16252, 16439, 19340, 20315, 32878, 40630, 65756, 81260, 82195, 164390, 231113, 328780, 462226, 924452, 1155565, 2311130, 3928921, 4622260, 7857842, 15715684, 19644605, 39289210, 78578420]

約数ペア:

[(1, 78578420), (2, 39289210), (4, 19644605), (5, 15715684), (10, 7857842), (17, 4622260), (20, 3928921), (34, 2311130), (68, 1155565), (85, 924452), (170, 462226), (239, 328780), (340, 231113), (478, 164390), (956, 82195), (967, 81260), (1195, 65756), (1934, 40630), (2390, 32878), (3868, 20315), (4063, 19340), (4780, 16439), (4835, 16252), (8126, 9670)]