19147960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1601}}^1$

素因数の和:1648

約数の個数: 64

約数和(自身を含む): 48444480

約数和(自身を除く): 29296520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 23, 26, 40, 46, 52, 65, 92, 104, 115, 130, 184, 230, 260, 299, 460, 520, 598, 920, 1196, 1495, 1601, 2392, 2990, 3202, 5980, 6404, 8005, 11960, 12808, 16010, 20813, 32020, 36823, 41626, 64040, 73646, 83252, 104065, 147292, 166504, 184115, 208130, 294584, 368230, 416260, 478699, 736460, 832520, 957398, 1472920, 1914796, 2393495, 3829592, 4786990, 9573980, 19147960]

約数ペア:

[(1, 19147960), (2, 9573980), (4, 4786990), (5, 3829592), (8, 2393495), (10, 1914796), (13, 1472920), (20, 957398), (23, 832520), (26, 736460), (40, 478699), (46, 416260), (52, 368230), (65, 294584), (92, 208130), (104, 184115), (115, 166504), (130, 147292), (184, 104065), (230, 83252), (260, 73646), (299, 64040), (460, 41626), (520, 36823), (598, 32020), (920, 20813), (1196, 16010), (1495, 12808), (1601, 11960), (2392, 8005), (2990, 6404), (3202, 5980)]