198669960

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{551861}}^1$

素因数の和:551878

約数の個数: 48

約数和(自身を含む): 645678540

約数和(自身を除く): 447008580

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 551861, 1103722, 1655583, 2207444, 2759305, 3311166, 4414888, 4966749, 5518610, 6622332, 8277915, 9933498, 11037220, 13244664, 16555830, 19866996, 22074440, 24833745, 33111660, 39733992, 49667490, 66223320, 99334980, 198669960]

約数ペア:

[(1, 198669960), (2, 99334980), (3, 66223320), (4, 49667490), (5, 39733992), (6, 33111660), (8, 24833745), (9, 22074440), (10, 19866996), (12, 16555830), (15, 13244664), (18, 11037220), (20, 9933498), (24, 8277915), (30, 6622332), (36, 5518610), (40, 4966749), (45, 4414888), (60, 3311166), (72, 2759305), (90, 2207444), (120, 1655583), (180, 1103722), (360, 551861)]