19218408040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1945183}}^1$

素因数の和:1945226

約数の個数: 64

約数和(自身を含む): 49018636800

約数和(自身を除く): 29800228760

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 380, 494, 520, 760, 988, 1235, 1976, 2470, 4940, 9880, 1945183, 3890366, 7780732, 9725915, 15561464, 19451830, 25287379, 36958477, 38903660, 50574758, 73916954, 77807320, 101149516, 126436895, 147833908, 184792385, 202299032, 252873790, 295667816, 369584770, 480460201, 505747580, 739169540, 960920402, 1011495160, 1478339080, 1921840804, 2402301005, 3843681608, 4804602010, 9609204020, 19218408040]

約数ペア:

[(1, 19218408040), (2, 9609204020), (4, 4804602010), (5, 3843681608), (8, 2402301005), (10, 1921840804), (13, 1478339080), (19, 1011495160), (20, 960920402), (26, 739169540), (38, 505747580), (40, 480460201), (52, 369584770), (65, 295667816), (76, 252873790), (95, 202299032), (104, 184792385), (130, 147833908), (152, 126436895), (190, 101149516), (247, 77807320), (260, 73916954), (380, 50574758), (494, 38903660), (520, 36958477), (760, 25287379), (988, 19451830), (1235, 15561464), (1976, 9725915), (2470, 7780732), (4940, 3890366), (9880, 1945183)]