18981810

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{229}}^1\times {\mathrm{307}}^1$

素因数の和:552

約数の個数: 64

約数和(自身を含む): 51004800

約数和(自身を除く): 32022990

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 229, 270, 307, 458, 614, 687, 921, 1145, 1374, 1535, 1842, 2061, 2290, 2763, 3070, 3435, 4122, 4605, 5526, 6183, 6870, 8289, 9210, 10305, 12366, 13815, 16578, 20610, 27630, 30915, 41445, 61830, 70303, 82890, 140606, 210909, 351515, 421818, 632727, 703030, 1054545, 1265454, 1898181, 2109090, 3163635, 3796362, 6327270, 9490905, 18981810]

約数ペア:

[(1, 18981810), (2, 9490905), (3, 6327270), (5, 3796362), (6, 3163635), (9, 2109090), (10, 1898181), (15, 1265454), (18, 1054545), (27, 703030), (30, 632727), (45, 421818), (54, 351515), (90, 210909), (135, 140606), (229, 82890), (270, 70303), (307, 61830), (458, 41445), (614, 30915), (687, 27630), (921, 20610), (1145, 16578), (1374, 13815), (1535, 12366), (1842, 10305), (2061, 9210), (2290, 8289), (2763, 6870), (3070, 6183), (3435, 5526), (4122, 4605)]