279968240

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{1481}}^1$

素因数の和:1650

約数の個数: 80

約数和(自身を含む): 694643040

約数和(自身を除く): 414674800

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 139, 170, 272, 278, 340, 556, 680, 695, 1112, 1360, 1390, 1481, 2224, 2363, 2780, 2962, 4726, 5560, 5924, 7405, 9452, 11120, 11815, 11848, 14810, 18904, 23630, 23696, 25177, 29620, 37808, 47260, 50354, 59240, 94520, 100708, 118480, 125885, 189040, 201416, 205859, 251770, 402832, 411718, 503540, 823436, 1007080, 1029295, 1646872, 2014160, 2058590, 3293744, 3499603, 4117180, 6999206, 8234360, 13998412, 16468720, 17498015, 27996824, 34996030, 55993648, 69992060, 139984120, 279968240]

約数ペア:

[(1, 279968240), (2, 139984120), (4, 69992060), (5, 55993648), (8, 34996030), (10, 27996824), (16, 17498015), (17, 16468720), (20, 13998412), (34, 8234360), (40, 6999206), (68, 4117180), (80, 3499603), (85, 3293744), (136, 2058590), (139, 2014160), (170, 1646872), (272, 1029295), (278, 1007080), (340, 823436), (556, 503540), (680, 411718), (695, 402832), (1112, 251770), (1360, 205859), (1390, 201416), (1481, 189040), (2224, 125885), (2363, 118480), (2780, 100708), (2962, 94520), (4726, 59240), (5560, 50354), (5924, 47260), (7405, 37808), (9452, 29620), (11120, 25177), (11815, 23696), (11848, 23630), (14810, 18904)]