1391542180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{401}}^1\times {\mathrm{3541}}^1$

素因数の和:3965

約数の個数: 72

約数和(自身を含む): 3408778296

約数和(自身を除く): 2017236116

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 401, 490, 802, 980, 1604, 2005, 2807, 3541, 4010, 5614, 7082, 8020, 11228, 14035, 14164, 17705, 19649, 24787, 28070, 35410, 39298, 49574, 56140, 70820, 78596, 98245, 99148, 123935, 173509, 196490, 247870, 347018, 392980, 495740, 694036, 867545, 1419941, 1735090, 2839882, 3470180, 5679764, 7099705, 9939587, 14199410, 19879174, 28398820, 39758348, 49697935, 69577109, 99395870, 139154218, 198791740, 278308436, 347885545, 695771090, 1391542180]

約数ペア:

[(1, 1391542180), (2, 695771090), (4, 347885545), (5, 278308436), (7, 198791740), (10, 139154218), (14, 99395870), (20, 69577109), (28, 49697935), (35, 39758348), (49, 28398820), (70, 19879174), (98, 14199410), (140, 9939587), (196, 7099705), (245, 5679764), (401, 3470180), (490, 2839882), (802, 1735090), (980, 1419941), (1604, 867545), (2005, 694036), (2807, 495740), (3541, 392980), (4010, 347018), (5614, 247870), (7082, 196490), (8020, 173509), (11228, 123935), (14035, 99148), (14164, 98245), (17705, 78596), (19649, 70820), (24787, 56140), (28070, 49574), (35410, 39298)]