42354340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{4261}}^1$

素因数の和:4348

約数の個数: 48

約数和(自身を含む): 103106304

約数和(自身を除く): 60751964

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, 4261, 4970, 8522, 9940, 17044, 21305, 29827, 42610, 59654, 85220, 119308, 149135, 298270, 302531, 596540, 605062, 1210124, 1512655, 2117717, 3025310, 4235434, 6050620, 8470868, 10588585, 21177170, 42354340]

約数ペア:

[(1, 42354340), (2, 21177170), (4, 10588585), (5, 8470868), (7, 6050620), (10, 4235434), (14, 3025310), (20, 2117717), (28, 1512655), (35, 1210124), (70, 605062), (71, 596540), (140, 302531), (142, 298270), (284, 149135), (355, 119308), (497, 85220), (710, 59654), (994, 42610), (1420, 29827), (1988, 21305), (2485, 17044), (4261, 9940), (4970, 8522)]