251059120

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{1481}}^1$

素因数の和:1670

約数の個数: 80

約数和(自身を含む): 632896992

約数和(自身を除く): 381837872

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 163, 208, 260, 326, 520, 652, 815, 1040, 1304, 1481, 1630, 2119, 2608, 2962, 3260, 4238, 5924, 6520, 7405, 8476, 10595, 11848, 13040, 14810, 16952, 19253, 21190, 23696, 29620, 33904, 38506, 42380, 59240, 77012, 84760, 96265, 118480, 154024, 169520, 192530, 241403, 308048, 385060, 482806, 770120, 965612, 1207015, 1540240, 1931224, 2414030, 3138239, 3862448, 4828060, 6276478, 9656120, 12552956, 15691195, 19312240, 25105912, 31382390, 50211824, 62764780, 125529560, 251059120]

約数ペア:

[(1, 251059120), (2, 125529560), (4, 62764780), (5, 50211824), (8, 31382390), (10, 25105912), (13, 19312240), (16, 15691195), (20, 12552956), (26, 9656120), (40, 6276478), (52, 4828060), (65, 3862448), (80, 3138239), (104, 2414030), (130, 1931224), (163, 1540240), (208, 1207015), (260, 965612), (326, 770120), (520, 482806), (652, 385060), (815, 308048), (1040, 241403), (1304, 192530), (1481, 169520), (1630, 154024), (2119, 118480), (2608, 96265), (2962, 84760), (3260, 77012), (4238, 59240), (5924, 42380), (6520, 38506), (7405, 33904), (8476, 29620), (10595, 23696), (11848, 21190), (13040, 19253), (14810, 16952)]