78791020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{7309}}^1$

素因数の和:7343

約数の個数: 72

約数和(自身を含む): 210001680

約数和(自身を除く): 131210660

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 308, 385, 490, 539, 770, 980, 1078, 1540, 2156, 2695, 5390, 7309, 10780, 14618, 29236, 36545, 51163, 73090, 80399, 102326, 146180, 160798, 204652, 255815, 321596, 358141, 401995, 511630, 562793, 716282, 803990, 1023260, 1125586, 1432564, 1607980, 1790705, 2251172, 2813965, 3581410, 3939551, 5627930, 7162820, 7879102, 11255860, 15758204, 19697755, 39395510, 78791020]

約数ペア:

[(1, 78791020), (2, 39395510), (4, 19697755), (5, 15758204), (7, 11255860), (10, 7879102), (11, 7162820), (14, 5627930), (20, 3939551), (22, 3581410), (28, 2813965), (35, 2251172), (44, 1790705), (49, 1607980), (55, 1432564), (70, 1125586), (77, 1023260), (98, 803990), (110, 716282), (140, 562793), (154, 511630), (196, 401995), (220, 358141), (245, 321596), (308, 255815), (385, 204652), (490, 160798), (539, 146180), (770, 102326), (980, 80399), (1078, 73090), (1540, 51163), (2156, 36545), (2695, 29236), (5390, 14618), (7309, 10780)]