401208020

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{463}}^1\times {\mathrm{1171}}^1$

素因数の和:1680

約数の個数: 48

約数和(自身を含む): 867917568

約数和(自身を除く): 466709548

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 463, 740, 926, 1171, 1852, 2315, 2342, 4630, 4684, 5855, 9260, 11710, 17131, 23420, 34262, 43327, 68524, 85655, 86654, 171310, 173308, 216635, 342620, 433270, 542173, 866540, 1084346, 2168692, 2710865, 5421730, 10843460, 20060401, 40120802, 80241604, 100302005, 200604010, 401208020]

約数ペア:

[(1, 401208020), (2, 200604010), (4, 100302005), (5, 80241604), (10, 40120802), (20, 20060401), (37, 10843460), (74, 5421730), (148, 2710865), (185, 2168692), (370, 1084346), (463, 866540), (740, 542173), (926, 433270), (1171, 342620), (1852, 216635), (2315, 173308), (2342, 171310), (4630, 86654), (4684, 85655), (5855, 68524), (9260, 43327), (11710, 34262), (17131, 23420)]