259169440

素因数分解:

$2^5\times 5^1\times {\mathrm{491}}^1\times {\mathrm{3299}}^1$

素因数の和:3805

約数の個数: 48

約数和(自身を含む): 613720800

約数和(自身を除く): 354551360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 491, 982, 1964, 2455, 3299, 3928, 4910, 6598, 7856, 9820, 13196, 15712, 16495, 19640, 26392, 32990, 39280, 52784, 65980, 78560, 105568, 131960, 263920, 527840, 1619809, 3239618, 6479236, 8099045, 12958472, 16198090, 25916944, 32396180, 51833888, 64792360, 129584720, 259169440]

約数ペア:

[(1, 259169440), (2, 129584720), (4, 64792360), (5, 51833888), (8, 32396180), (10, 25916944), (16, 16198090), (20, 12958472), (32, 8099045), (40, 6479236), (80, 3239618), (160, 1619809), (491, 527840), (982, 263920), (1964, 131960), (2455, 105568), (3299, 78560), (3928, 65980), (4910, 52784), (6598, 39280), (7856, 32990), (9820, 26392), (13196, 19640), (15712, 16495)]