1551138140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{79}}^2$

素因数の和:244

約数の個数: 108

約数和(自身を含む): 3586130856

約数和(自身を除く): 2034992716

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 43, 68, 79, 85, 86, 158, 170, 172, 215, 289, 316, 340, 395, 430, 578, 731, 790, 860, 1156, 1343, 1445, 1462, 1580, 2686, 2890, 2924, 3397, 3655, 5372, 5780, 6241, 6715, 6794, 7310, 12427, 12482, 13430, 13588, 14620, 16985, 22831, 24854, 24964, 26860, 31205, 33970, 45662, 49708, 57749, 62135, 62410, 67940, 91324, 106097, 114155, 115498, 124270, 124820, 212194, 228310, 230996, 248540, 268363, 288745, 424388, 456620, 530485, 536726, 577490, 981733, 1060970, 1073452, 1154980, 1341815, 1803649, 1963466, 2121940, 2683630, 3607298, 3926932, 4562171, 4908665, 5367260, 7214596, 9018245, 9124342, 9817330, 18036490, 18248684, 19634660, 22810855, 36072980, 45621710, 77556907, 91243420, 155113814, 310227628, 387784535, 775569070, 1551138140]

約数ペア:

[(1, 1551138140), (2, 775569070), (4, 387784535), (5, 310227628), (10, 155113814), (17, 91243420), (20, 77556907), (34, 45621710), (43, 36072980), (68, 22810855), (79, 19634660), (85, 18248684), (86, 18036490), (158, 9817330), (170, 9124342), (172, 9018245), (215, 7214596), (289, 5367260), (316, 4908665), (340, 4562171), (395, 3926932), (430, 3607298), (578, 2683630), (731, 2121940), (790, 1963466), (860, 1803649), (1156, 1341815), (1343, 1154980), (1445, 1073452), (1462, 1060970), (1580, 981733), (2686, 577490), (2890, 536726), (2924, 530485), (3397, 456620), (3655, 424388), (5372, 288745), (5780, 268363), (6241, 248540), (6715, 230996), (6794, 228310), (7310, 212194), (12427, 124820), (12482, 124270), (13430, 115498), (13588, 114155), (14620, 106097), (16985, 91324), (22831, 67940), (24854, 62410), (24964, 62135), (26860, 57749), (31205, 49708), (33970, 45662)]