18953920

素因数分解:

$2^6\times 5^1\times {\mathrm{61}}^1\times {\mathrm{971}}^1$

素因数の和:1049

約数の個数: 56

約数和(自身を含む): 45921168

約数和(自身を除く): 26967248

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 160, 244, 305, 320, 488, 610, 971, 976, 1220, 1942, 1952, 2440, 3884, 3904, 4855, 4880, 7768, 9710, 9760, 15536, 19420, 19520, 31072, 38840, 59231, 62144, 77680, 118462, 155360, 236924, 296155, 310720, 473848, 592310, 947696, 1184620, 1895392, 2369240, 3790784, 4738480, 9476960, 18953920]

約数ペア:

[(1, 18953920), (2, 9476960), (4, 4738480), (5, 3790784), (8, 2369240), (10, 1895392), (16, 1184620), (20, 947696), (32, 592310), (40, 473848), (61, 310720), (64, 296155), (80, 236924), (122, 155360), (160, 118462), (244, 77680), (305, 62144), (320, 59231), (488, 38840), (610, 31072), (971, 19520), (976, 19420), (1220, 15536), (1942, 9760), (1952, 9710), (2440, 7768), (3884, 4880), (3904, 4855)]