1620004828

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{211}}^1\times {\mathrm{409}}^1$

素因数の和:675

約数の個数: 72

約数和(自身を含む): 3245418960

約数和(自身を除く): 1625414132

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 211, 247, 361, 409, 422, 494, 722, 818, 844, 988, 1444, 1636, 2743, 4009, 4693, 5317, 5486, 7771, 8018, 9386, 10634, 10972, 15542, 16036, 18772, 21268, 31084, 52117, 76171, 86299, 101023, 104234, 147649, 152342, 172598, 202046, 208468, 295298, 304684, 345196, 404092, 590596, 990223, 1121887, 1639681, 1919437, 1980446, 2243774, 3279362, 3838874, 3960892, 4487548, 6558724, 7677748, 21315853, 31153939, 42631706, 62307878, 85263412, 124615756, 405001207, 810002414, 1620004828]

約数ペア:

[(1, 1620004828), (2, 810002414), (4, 405001207), (13, 124615756), (19, 85263412), (26, 62307878), (38, 42631706), (52, 31153939), (76, 21315853), (211, 7677748), (247, 6558724), (361, 4487548), (409, 3960892), (422, 3838874), (494, 3279362), (722, 2243774), (818, 1980446), (844, 1919437), (988, 1639681), (1444, 1121887), (1636, 990223), (2743, 590596), (4009, 404092), (4693, 345196), (5317, 304684), (5486, 295298), (7771, 208468), (8018, 202046), (9386, 172598), (10634, 152342), (10972, 147649), (15542, 104234), (16036, 101023), (18772, 86299), (21268, 76171), (31084, 52117)]