201641908

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{409}}^1\times {\mathrm{499}}^1$

素因数の和:944

約数の個数: 48

約数和(自身を含む): 401800000

約数和(自身を除く): 200158092

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 409, 494, 499, 818, 988, 998, 1636, 1996, 5317, 6487, 7771, 9481, 10634, 12974, 15542, 18962, 21268, 25948, 31084, 37924, 101023, 123253, 202046, 204091, 246506, 404092, 408182, 493012, 816364, 2653183, 3877729, 5306366, 7755458, 10612732, 15510916, 50410477, 100820954, 201641908]

約数ペア:

[(1, 201641908), (2, 100820954), (4, 50410477), (13, 15510916), (19, 10612732), (26, 7755458), (38, 5306366), (52, 3877729), (76, 2653183), (247, 816364), (409, 493012), (494, 408182), (499, 404092), (818, 246506), (988, 204091), (998, 202046), (1636, 123253), (1996, 101023), (5317, 37924), (6487, 31084), (7771, 25948), (9481, 21268), (10634, 18962), (12974, 15542)]