78895260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{2689}}^1$

素因数の和:2867

約数の個数: 72

約数和(自身を含む): 240873360

約数和(自身を除く): 161978100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 163, 180, 326, 489, 652, 815, 978, 1467, 1630, 1956, 2445, 2689, 2934, 3260, 4890, 5378, 5868, 7335, 8067, 9780, 10756, 13445, 14670, 16134, 24201, 26890, 29340, 32268, 40335, 48402, 53780, 80670, 96804, 121005, 161340, 242010, 438307, 484020, 876614, 1314921, 1753228, 2191535, 2629842, 3944763, 4383070, 5259684, 6574605, 7889526, 8766140, 13149210, 15779052, 19723815, 26298420, 39447630, 78895260]

約数ペア:

[(1, 78895260), (2, 39447630), (3, 26298420), (4, 19723815), (5, 15779052), (6, 13149210), (9, 8766140), (10, 7889526), (12, 6574605), (15, 5259684), (18, 4383070), (20, 3944763), (30, 2629842), (36, 2191535), (45, 1753228), (60, 1314921), (90, 876614), (163, 484020), (180, 438307), (326, 242010), (489, 161340), (652, 121005), (815, 96804), (978, 80670), (1467, 53780), (1630, 48402), (1956, 40335), (2445, 32268), (2689, 29340), (2934, 26890), (3260, 24201), (4890, 16134), (5378, 14670), (5868, 13445), (7335, 10756), (8067, 9780)]