80081220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{78511}}^1$

素因数の和:78540

約数の個数: 48

約数和(自身を含む): 237420288

約数和(自身を除く): 157339068

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 78511, 157022, 235533, 314044, 392555, 471066, 785110, 942132, 1177665, 1334687, 1570220, 2355330, 2669374, 4004061, 4710660, 5338748, 6673435, 8008122, 13346870, 16016244, 20020305, 26693740, 40040610, 80081220]

約数ペア:

[(1, 80081220), (2, 40040610), (3, 26693740), (4, 20020305), (5, 16016244), (6, 13346870), (10, 8008122), (12, 6673435), (15, 5338748), (17, 4710660), (20, 4004061), (30, 2669374), (34, 2355330), (51, 1570220), (60, 1334687), (68, 1177665), (85, 942132), (102, 785110), (170, 471066), (204, 392555), (255, 314044), (340, 235533), (510, 157022), (1020, 78511)]