17957180

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{359}}^1$

素因数の和:470

約数の個数: 48

約数和(自身を含む): 39372480

約数和(自身を除く): 21415300

約数列:

[1, 2, 4, 5, 10, 20, 41, 61, 82, 122, 164, 205, 244, 305, 359, 410, 610, 718, 820, 1220, 1436, 1795, 2501, 3590, 5002, 7180, 10004, 12505, 14719, 21899, 25010, 29438, 43798, 50020, 58876, 73595, 87596, 109495, 147190, 218990, 294380, 437980, 897859, 1795718, 3591436, 4489295, 8978590, 17957180]

約数ペア:

[(1, 17957180), (2, 8978590), (4, 4489295), (5, 3591436), (10, 1795718), (20, 897859), (41, 437980), (61, 294380), (82, 218990), (122, 147190), (164, 109495), (205, 87596), (244, 73595), (305, 58876), (359, 50020), (410, 43798), (610, 29438), (718, 25010), (820, 21899), (1220, 14719), (1436, 12505), (1795, 10004), (2501, 7180), (3590, 5002)]