31333380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{139}}^1$

素因数の和:198

約数の個数: 144

約数和(自身を含む): 101088960

約数和(自身を除く): 69755580

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 17, 20, 26, 30, 34, 39, 51, 52, 60, 65, 68, 78, 85, 102, 130, 139, 156, 170, 195, 204, 221, 255, 260, 278, 289, 340, 390, 417, 442, 510, 556, 578, 663, 695, 780, 834, 867, 884, 1020, 1105, 1156, 1326, 1390, 1445, 1668, 1734, 1807, 2085, 2210, 2363, 2652, 2780, 2890, 3315, 3468, 3614, 3757, 4170, 4335, 4420, 4726, 5421, 5780, 6630, 7089, 7228, 7514, 8340, 8670, 9035, 9452, 10842, 11271, 11815, 13260, 14178, 15028, 17340, 18070, 18785, 21684, 22542, 23630, 27105, 28356, 30719, 35445, 36140, 37570, 40171, 45084, 47260, 54210, 56355, 61438, 70890, 75140, 80342, 92157, 108420, 112710, 120513, 122876, 141780, 153595, 160684, 184314, 200855, 225420, 241026, 307190, 368628, 401710, 460785, 482052, 522223, 602565, 614380, 803420, 921570, 1044446, 1205130, 1566669, 1843140, 2088892, 2410260, 2611115, 3133338, 5222230, 6266676, 7833345, 10444460, 15666690, 31333380]

約数ペア:

[(1, 31333380), (2, 15666690), (3, 10444460), (4, 7833345), (5, 6266676), (6, 5222230), (10, 3133338), (12, 2611115), (13, 2410260), (15, 2088892), (17, 1843140), (20, 1566669), (26, 1205130), (30, 1044446), (34, 921570), (39, 803420), (51, 614380), (52, 602565), (60, 522223), (65, 482052), (68, 460785), (78, 401710), (85, 368628), (102, 307190), (130, 241026), (139, 225420), (156, 200855), (170, 184314), (195, 160684), (204, 153595), (221, 141780), (255, 122876), (260, 120513), (278, 112710), (289, 108420), (340, 92157), (390, 80342), (417, 75140), (442, 70890), (510, 61438), (556, 56355), (578, 54210), (663, 47260), (695, 45084), (780, 40171), (834, 37570), (867, 36140), (884, 35445), (1020, 30719), (1105, 28356), (1156, 27105), (1326, 23630), (1390, 22542), (1445, 21684), (1668, 18785), (1734, 18070), (1807, 17340), (2085, 15028), (2210, 14178), (2363, 13260), (2652, 11815), (2780, 11271), (2890, 10842), (3315, 9452), (3468, 9035), (3614, 8670), (3757, 8340), (4170, 7514), (4335, 7228), (4420, 7089), (4726, 6630), (5421, 5780)]