15392860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{113}}^1\times {\mathrm{139}}^1$

素因数の和:275

約数の個数: 72

約数和(自身を含む): 38208240

約数和(自身を除く): 22815380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 113, 139, 140, 196, 226, 245, 278, 452, 490, 556, 565, 695, 791, 973, 980, 1130, 1390, 1582, 1946, 2260, 2780, 3164, 3892, 3955, 4865, 5537, 6811, 7910, 9730, 11074, 13622, 15707, 15820, 19460, 22148, 27244, 27685, 31414, 34055, 55370, 62828, 68110, 78535, 109949, 110740, 136220, 157070, 219898, 314140, 439796, 549745, 769643, 1099490, 1539286, 2198980, 3078572, 3848215, 7696430, 15392860]

約数ペア:

[(1, 15392860), (2, 7696430), (4, 3848215), (5, 3078572), (7, 2198980), (10, 1539286), (14, 1099490), (20, 769643), (28, 549745), (35, 439796), (49, 314140), (70, 219898), (98, 157070), (113, 136220), (139, 110740), (140, 109949), (196, 78535), (226, 68110), (245, 62828), (278, 55370), (452, 34055), (490, 31414), (556, 27685), (565, 27244), (695, 22148), (791, 19460), (973, 15820), (980, 15707), (1130, 13622), (1390, 11074), (1582, 9730), (1946, 7910), (2260, 6811), (2780, 5537), (3164, 4865), (3892, 3955)]