19205920

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{307}}^1$

素因数の和:362

約数の個数: 96

約数和(自身を含む): 50295168

約数和(自身を除く): 31089248

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 23, 32, 34, 40, 46, 68, 80, 85, 92, 115, 136, 160, 170, 184, 230, 272, 307, 340, 368, 391, 460, 544, 614, 680, 736, 782, 920, 1228, 1360, 1535, 1564, 1840, 1955, 2456, 2720, 3070, 3128, 3680, 3910, 4912, 5219, 6140, 6256, 7061, 7820, 9824, 10438, 12280, 12512, 14122, 15640, 20876, 24560, 26095, 28244, 31280, 35305, 41752, 49120, 52190, 56488, 62560, 70610, 83504, 104380, 112976, 120037, 141220, 167008, 208760, 225952, 240074, 282440, 417520, 480148, 564880, 600185, 835040, 960296, 1129760, 1200370, 1920592, 2400740, 3841184, 4801480, 9602960, 19205920]

約数ペア:

[(1, 19205920), (2, 9602960), (4, 4801480), (5, 3841184), (8, 2400740), (10, 1920592), (16, 1200370), (17, 1129760), (20, 960296), (23, 835040), (32, 600185), (34, 564880), (40, 480148), (46, 417520), (68, 282440), (80, 240074), (85, 225952), (92, 208760), (115, 167008), (136, 141220), (160, 120037), (170, 112976), (184, 104380), (230, 83504), (272, 70610), (307, 62560), (340, 56488), (368, 52190), (391, 49120), (460, 41752), (544, 35305), (614, 31280), (680, 28244), (736, 26095), (782, 24560), (920, 20876), (1228, 15640), (1360, 14122), (1535, 12512), (1564, 12280), (1840, 10438), (1955, 9824), (2456, 7820), (2720, 7061), (3070, 6256), (3128, 6140), (3680, 5219), (3910, 4912)]