42129640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{379}}^1\times {\mathrm{397}}^1$

素因数の和:794

約数の個数: 64

約数和(自身を含む): 108892800

約数和(自身を除く): 66763160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 379, 397, 758, 794, 1516, 1588, 1895, 1985, 2653, 2779, 3032, 3176, 3790, 3970, 5306, 5558, 7580, 7940, 10612, 11116, 13265, 13895, 15160, 15880, 21224, 22232, 26530, 27790, 53060, 55580, 106120, 111160, 150463, 300926, 601852, 752315, 1053241, 1203704, 1504630, 2106482, 3009260, 4212964, 5266205, 6018520, 8425928, 10532410, 21064820, 42129640]

約数ペア:

[(1, 42129640), (2, 21064820), (4, 10532410), (5, 8425928), (7, 6018520), (8, 5266205), (10, 4212964), (14, 3009260), (20, 2106482), (28, 1504630), (35, 1203704), (40, 1053241), (56, 752315), (70, 601852), (140, 300926), (280, 150463), (379, 111160), (397, 106120), (758, 55580), (794, 53060), (1516, 27790), (1588, 26530), (1895, 22232), (1985, 21224), (2653, 15880), (2779, 15160), (3032, 13895), (3176, 13265), (3790, 11116), (3970, 10612), (5306, 7940), (5558, 7580)]