31498790

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:237

約数の個数: 64

約数和(自身を含む): 63866880

約数和(自身を除く): 32368090

約数列:

[1, 2, 5, 10, 17, 31, 34, 43, 62, 85, 86, 139, 155, 170, 215, 278, 310, 430, 527, 695, 731, 1054, 1333, 1390, 1462, 2363, 2635, 2666, 3655, 4309, 4726, 5270, 5977, 6665, 7310, 8618, 11815, 11954, 13330, 21545, 22661, 23630, 29885, 43090, 45322, 59770, 73253, 101609, 113305, 146506, 185287, 203218, 226610, 366265, 370574, 508045, 732530, 926435, 1016090, 1852870, 3149879, 6299758, 15749395, 31498790]

約数ペア:

[(1, 31498790), (2, 15749395), (5, 6299758), (10, 3149879), (17, 1852870), (31, 1016090), (34, 926435), (43, 732530), (62, 508045), (85, 370574), (86, 366265), (139, 226610), (155, 203218), (170, 185287), (215, 146506), (278, 113305), (310, 101609), (430, 73253), (527, 59770), (695, 45322), (731, 43090), (1054, 29885), (1333, 23630), (1390, 22661), (1462, 21545), (2363, 13330), (2635, 11954), (2666, 11815), (3655, 8618), (4309, 7310), (4726, 6665), (5270, 5977)]