28147690

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^2\times {\mathrm{101}}^1$

素因数の和:199

約数の個数: 48

約数和(自身を含む): 54694440

約数和(自身を除く): 26546750

約数列:

[1, 2, 5, 10, 29, 31, 58, 62, 101, 145, 155, 202, 290, 310, 505, 899, 961, 1010, 1798, 1922, 2929, 3131, 4495, 4805, 5858, 6262, 8990, 9610, 14645, 15655, 27869, 29290, 31310, 55738, 90799, 97061, 139345, 181598, 194122, 278690, 453995, 485305, 907990, 970610, 2814769, 5629538, 14073845, 28147690]

約数ペア:

[(1, 28147690), (2, 14073845), (5, 5629538), (10, 2814769), (29, 970610), (31, 907990), (58, 485305), (62, 453995), (101, 278690), (145, 194122), (155, 181598), (202, 139345), (290, 97061), (310, 90799), (505, 55738), (899, 31310), (961, 29290), (1010, 27869), (1798, 15655), (1922, 14645), (2929, 9610), (3131, 8990), (4495, 6262), (4805, 5858)]