81963660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{15349}}^1$

素因数の和:15450

約数の個数: 48

約数和(自身を含む): 232092000

約数和(自身を除く): 150128340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 89, 178, 267, 356, 445, 534, 890, 1068, 1335, 1780, 2670, 5340, 15349, 30698, 46047, 61396, 76745, 92094, 153490, 184188, 230235, 306980, 460470, 920940, 1366061, 2732122, 4098183, 5464244, 6830305, 8196366, 13660610, 16392732, 20490915, 27321220, 40981830, 81963660]

約数ペア:

[(1, 81963660), (2, 40981830), (3, 27321220), (4, 20490915), (5, 16392732), (6, 13660610), (10, 8196366), (12, 6830305), (15, 5464244), (20, 4098183), (30, 2732122), (60, 1366061), (89, 920940), (178, 460470), (267, 306980), (356, 230235), (445, 184188), (534, 153490), (890, 92094), (1068, 76745), (1335, 61396), (1780, 46047), (2670, 30698), (5340, 15349)]