1356220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1$

素因数の和:154

約数の個数: 48

約数和(自身を含む): 3104640

約数和(自身を除く): 1748420

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 43, 76, 83, 86, 95, 166, 172, 190, 215, 332, 380, 415, 430, 817, 830, 860, 1577, 1634, 1660, 3154, 3268, 3569, 4085, 6308, 7138, 7885, 8170, 14276, 15770, 16340, 17845, 31540, 35690, 67811, 71380, 135622, 271244, 339055, 678110, 1356220]

約数ペア:

[(1, 1356220), (2, 678110), (4, 339055), (5, 271244), (10, 135622), (19, 71380), (20, 67811), (38, 35690), (43, 31540), (76, 17845), (83, 16340), (86, 15770), (95, 14276), (166, 8170), (172, 7885), (190, 7138), (215, 6308), (332, 4085), (380, 3569), (415, 3268), (430, 3154), (817, 1660), (830, 1634), (860, 1577)]