19055920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{251}}^1$

素因数の和:350

約数の個数: 80

約数和(自身を含む): 48559392

約数和(自身を除く): 29503472

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 73, 80, 104, 130, 146, 208, 251, 260, 292, 365, 502, 520, 584, 730, 949, 1004, 1040, 1168, 1255, 1460, 1898, 2008, 2510, 2920, 3263, 3796, 4016, 4745, 5020, 5840, 6526, 7592, 9490, 10040, 13052, 15184, 16315, 18323, 18980, 20080, 26104, 32630, 36646, 37960, 52208, 65260, 73292, 75920, 91615, 130520, 146584, 183230, 238199, 261040, 293168, 366460, 476398, 732920, 952796, 1190995, 1465840, 1905592, 2381990, 3811184, 4763980, 9527960, 19055920]

約数ペア:

[(1, 19055920), (2, 9527960), (4, 4763980), (5, 3811184), (8, 2381990), (10, 1905592), (13, 1465840), (16, 1190995), (20, 952796), (26, 732920), (40, 476398), (52, 366460), (65, 293168), (73, 261040), (80, 238199), (104, 183230), (130, 146584), (146, 130520), (208, 91615), (251, 75920), (260, 73292), (292, 65260), (365, 52208), (502, 37960), (520, 36646), (584, 32630), (730, 26104), (949, 20080), (1004, 18980), (1040, 18323), (1168, 16315), (1255, 15184), (1460, 13052), (1898, 10040), (2008, 9490), (2510, 7592), (2920, 6526), (3263, 5840), (3796, 5020), (4016, 4745)]