212310020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{331}}^1\times {\mathrm{2467}}^1$

素因数の和:2820

約数の個数: 48

約数和(自身を含む): 481793088

約数和(自身を除く): 269483068

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 331, 662, 1324, 1655, 2467, 3310, 4303, 4934, 6620, 8606, 9868, 12335, 17212, 21515, 24670, 32071, 43030, 49340, 64142, 86060, 128284, 160355, 320710, 641420, 816577, 1633154, 3266308, 4082885, 8165770, 10615501, 16331540, 21231002, 42462004, 53077505, 106155010, 212310020]

約数ペア:

[(1, 212310020), (2, 106155010), (4, 53077505), (5, 42462004), (10, 21231002), (13, 16331540), (20, 10615501), (26, 8165770), (52, 4082885), (65, 3266308), (130, 1633154), (260, 816577), (331, 641420), (662, 320710), (1324, 160355), (1655, 128284), (2467, 86060), (3310, 64142), (4303, 49340), (4934, 43030), (6620, 32071), (8606, 24670), (9868, 21515), (12335, 17212)]