40007920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{26321}}^1$

素因数の和:26353

約数の個数: 40

約数和(自身を含む): 97917840

約数和(自身を除く): 57909920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 26321, 52642, 105284, 131605, 210568, 263210, 421136, 500099, 526420, 1000198, 1052840, 2000396, 2105680, 2500495, 4000792, 5000990, 8001584, 10001980, 20003960, 40007920]

約数ペア:

[(1, 40007920), (2, 20003960), (4, 10001980), (5, 8001584), (8, 5000990), (10, 4000792), (16, 2500495), (19, 2105680), (20, 2000396), (38, 1052840), (40, 1000198), (76, 526420), (80, 500099), (95, 421136), (152, 263210), (190, 210568), (304, 131605), (380, 105284), (760, 52642), (1520, 26321)]