28733620

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{523}}^1$

素因数の和:640

約数の個数: 48

約数和(自身を含む): 62854848

約数和(自身を除く): 34121228

約数列:

[1, 2, 4, 5, 10, 20, 41, 67, 82, 134, 164, 205, 268, 335, 410, 523, 670, 820, 1046, 1340, 2092, 2615, 2747, 5230, 5494, 10460, 10988, 13735, 21443, 27470, 35041, 42886, 54940, 70082, 85772, 107215, 140164, 175205, 214430, 350410, 428860, 700820, 1436681, 2873362, 5746724, 7183405, 14366810, 28733620]

約数ペア:

[(1, 28733620), (2, 14366810), (4, 7183405), (5, 5746724), (10, 2873362), (20, 1436681), (41, 700820), (67, 428860), (82, 350410), (134, 214430), (164, 175205), (205, 140164), (268, 107215), (335, 85772), (410, 70082), (523, 54940), (670, 42886), (820, 35041), (1046, 27470), (1340, 21443), (2092, 13735), (2615, 10988), (2747, 10460), (5230, 5494)]