398466180

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{316243}}^1$

素因数の和:316265

約数の個数: 72

約数和(自身を含む): 1381353792

約数和(自身を除く): 982887612

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 316243, 632486, 948729, 1264972, 1581215, 1897458, 2213701, 2846187, 3162430, 3794916, 4427402, 4743645, 5692374, 6324860, 6641103, 8854804, 9487290, 11068505, 11384748, 13282206, 14230935, 18974580, 19923309, 22137010, 26564412, 28461870, 33205515, 39846618, 44274020, 56923740, 66411030, 79693236, 99616545, 132822060, 199233090, 398466180]

約数ペア:

[(1, 398466180), (2, 199233090), (3, 132822060), (4, 99616545), (5, 79693236), (6, 66411030), (7, 56923740), (9, 44274020), (10, 39846618), (12, 33205515), (14, 28461870), (15, 26564412), (18, 22137010), (20, 19923309), (21, 18974580), (28, 14230935), (30, 13282206), (35, 11384748), (36, 11068505), (42, 9487290), (45, 8854804), (60, 6641103), (63, 6324860), (70, 5692374), (84, 4743645), (90, 4427402), (105, 3794916), (126, 3162430), (140, 2846187), (180, 2213701), (210, 1897458), (252, 1581215), (315, 1264972), (420, 948729), (630, 632486), (1260, 316243)]