28195540

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{173}}^1\times {\mathrm{281}}^1$

素因数の和:492

約数の個数: 48

約数和(自身を含む): 61825680

約数和(自身を除く): 33630140

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 173, 281, 290, 346, 562, 580, 692, 865, 1124, 1405, 1730, 2810, 3460, 5017, 5620, 8149, 10034, 16298, 20068, 25085, 32596, 40745, 48613, 50170, 81490, 97226, 100340, 162980, 194452, 243065, 486130, 972260, 1409777, 2819554, 5639108, 7048885, 14097770, 28195540]

約数ペア:

[(1, 28195540), (2, 14097770), (4, 7048885), (5, 5639108), (10, 2819554), (20, 1409777), (29, 972260), (58, 486130), (116, 243065), (145, 194452), (173, 162980), (281, 100340), (290, 97226), (346, 81490), (562, 50170), (580, 48613), (692, 40745), (865, 32596), (1124, 25085), (1405, 20068), (1730, 16298), (2810, 10034), (3460, 8149), (5017, 5620)]