278399480

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^2\times {\mathrm{24083}}^1$

素因数の和:24128

約数の個数: 48

約数和(自身を含む): 665440920

約数和(自身を除く): 387041440

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 289, 340, 578, 680, 1156, 1445, 2312, 2890, 5780, 11560, 24083, 48166, 96332, 120415, 192664, 240830, 409411, 481660, 818822, 963320, 1637644, 2047055, 3275288, 4094110, 6959987, 8188220, 13919974, 16376440, 27839948, 34799935, 55679896, 69599870, 139199740, 278399480]

約数ペア:

[(1, 278399480), (2, 139199740), (4, 69599870), (5, 55679896), (8, 34799935), (10, 27839948), (17, 16376440), (20, 13919974), (34, 8188220), (40, 6959987), (68, 4094110), (85, 3275288), (136, 2047055), (170, 1637644), (289, 963320), (340, 818822), (578, 481660), (680, 409411), (1156, 240830), (1445, 192664), (2312, 120415), (2890, 96332), (5780, 48166), (11560, 24083)]