280382360

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^2\times {\mathrm{223}}^1$

素因数の和:337

約数の個数: 96

約数和(自身を含む): 686931840

約数和(自身を除く): 406549480

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 43, 68, 85, 86, 136, 170, 172, 215, 223, 340, 344, 430, 446, 680, 731, 860, 892, 1115, 1462, 1720, 1784, 1849, 2230, 2924, 3655, 3698, 3791, 4460, 5848, 7310, 7396, 7582, 8920, 9245, 9589, 14620, 14792, 15164, 18490, 18955, 19178, 29240, 30328, 31433, 36980, 37910, 38356, 47945, 62866, 73960, 75820, 76712, 95890, 125732, 151640, 157165, 163013, 191780, 251464, 314330, 326026, 383560, 412327, 628660, 652052, 815065, 824654, 1257320, 1304104, 1630130, 1649308, 2061635, 3260260, 3298616, 4123270, 6520520, 7009559, 8246540, 14019118, 16493080, 28038236, 35047795, 56076472, 70095590, 140191180, 280382360]

約数ペア:

[(1, 280382360), (2, 140191180), (4, 70095590), (5, 56076472), (8, 35047795), (10, 28038236), (17, 16493080), (20, 14019118), (34, 8246540), (40, 7009559), (43, 6520520), (68, 4123270), (85, 3298616), (86, 3260260), (136, 2061635), (170, 1649308), (172, 1630130), (215, 1304104), (223, 1257320), (340, 824654), (344, 815065), (430, 652052), (446, 628660), (680, 412327), (731, 383560), (860, 326026), (892, 314330), (1115, 251464), (1462, 191780), (1720, 163013), (1784, 157165), (1849, 151640), (2230, 125732), (2924, 95890), (3655, 76712), (3698, 75820), (3791, 73960), (4460, 62866), (5848, 47945), (7310, 38356), (7396, 37910), (7582, 36980), (8920, 31433), (9245, 30328), (9589, 29240), (14620, 19178), (14792, 18955), (15164, 18490)]