40028380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{4027}}^1$

素因数の和:4114

約数の個数: 48

約数和(自身を含む): 97445376

約数和(自身を除く): 57416996

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4027, 4970, 8054, 9940, 16108, 20135, 28189, 40270, 56378, 80540, 112756, 140945, 281890, 285917, 563780, 571834, 1143668, 1429585, 2001419, 2859170, 4002838, 5718340, 8005676, 10007095, 20014190, 40028380]

約数ペア:

[(1, 40028380), (2, 20014190), (4, 10007095), (5, 8005676), (7, 5718340), (10, 4002838), (14, 2859170), (20, 2001419), (28, 1429585), (35, 1143668), (70, 571834), (71, 563780), (140, 285917), (142, 281890), (284, 140945), (355, 112756), (497, 80540), (710, 56378), (994, 40270), (1420, 28189), (1988, 20135), (2485, 16108), (4027, 9940), (4970, 8054)]