28391321985

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{733}}^1\times {\mathrm{1429}}^1$

素因数の和:2322

約数の個数: 64

約数和(自身を含む): 49374124800

約数和(自身を除く): 20982802815

約数列:

[1, 3, 5, 13, 15, 39, 65, 139, 195, 417, 695, 733, 1429, 1807, 2085, 2199, 3665, 4287, 5421, 7145, 9035, 9529, 10995, 18577, 21435, 27105, 28587, 47645, 55731, 92885, 101887, 142935, 198631, 278655, 305661, 509435, 595893, 993155, 1047457, 1324531, 1528305, 2582203, 2979465, 3142371, 3973593, 5237285, 6622655, 7746609, 12911015, 13616941, 15711855, 19867965, 38733045, 40850823, 68084705, 145596523, 204254115, 436789569, 727982615, 1892754799, 2183947845, 5678264397, 9463773995, 28391321985]

約数ペア:

[(1, 28391321985), (3, 9463773995), (5, 5678264397), (13, 2183947845), (15, 1892754799), (39, 727982615), (65, 436789569), (139, 204254115), (195, 145596523), (417, 68084705), (695, 40850823), (733, 38733045), (1429, 19867965), (1807, 15711855), (2085, 13616941), (2199, 12911015), (3665, 7746609), (4287, 6622655), (5421, 5237285), (7145, 3973593), (9035, 3142371), (9529, 2979465), (10995, 2582203), (18577, 1528305), (21435, 1324531), (27105, 1047457), (28587, 993155), (47645, 595893), (55731, 509435), (92885, 305661), (101887, 278655), (142935, 198631)]