19976490

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{241}}^1\times {\mathrm{307}}^1$

素因数の和:564

約数の個数: 64

約数和(自身を含む): 53665920

約数和(自身を除く): 33689430

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 241, 270, 307, 482, 614, 723, 921, 1205, 1446, 1535, 1842, 2169, 2410, 2763, 3070, 3615, 4338, 4605, 5526, 6507, 7230, 8289, 9210, 10845, 13014, 13815, 16578, 21690, 27630, 32535, 41445, 65070, 73987, 82890, 147974, 221961, 369935, 443922, 665883, 739870, 1109805, 1331766, 1997649, 2219610, 3329415, 3995298, 6658830, 9988245, 19976490]

約数ペア:

[(1, 19976490), (2, 9988245), (3, 6658830), (5, 3995298), (6, 3329415), (9, 2219610), (10, 1997649), (15, 1331766), (18, 1109805), (27, 739870), (30, 665883), (45, 443922), (54, 369935), (90, 221961), (135, 147974), (241, 82890), (270, 73987), (307, 65070), (482, 41445), (614, 32535), (723, 27630), (921, 21690), (1205, 16578), (1446, 13815), (1535, 13014), (1842, 10845), (2169, 9210), (2410, 8289), (2763, 7230), (3070, 6507), (3615, 5526), (4338, 4605)]