42026420

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1\times {\mathrm{397}}^1$

素因数の和:552

約数の個数: 48

約数和(自身を含む): 90935040

約数和(自身を除く): 48908620

約数列:

[1, 2, 4, 5, 10, 20, 67, 79, 134, 158, 268, 316, 335, 395, 397, 670, 790, 794, 1340, 1580, 1588, 1985, 3970, 5293, 7940, 10586, 21172, 26465, 26599, 31363, 52930, 53198, 62726, 105860, 106396, 125452, 132995, 156815, 265990, 313630, 531980, 627260, 2101321, 4202642, 8405284, 10506605, 21013210, 42026420]

約数ペア:

[(1, 42026420), (2, 21013210), (4, 10506605), (5, 8405284), (10, 4202642), (20, 2101321), (67, 627260), (79, 531980), (134, 313630), (158, 265990), (268, 156815), (316, 132995), (335, 125452), (395, 106396), (397, 105860), (670, 62726), (790, 53198), (794, 52930), (1340, 31363), (1580, 26599), (1588, 26465), (1985, 21172), (3970, 10586), (5293, 7940)]