22900000

素因数分解:

$2^5\times 5^5\times {\mathrm{229}}^1$

素因数の和:264

約数の個数: 72

約数和(自身を含む): 56597940

約数和(自身を除く): 33697940

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 229, 250, 400, 458, 500, 625, 800, 916, 1000, 1145, 1250, 1832, 2000, 2290, 2500, 3125, 3664, 4000, 4580, 5000, 5725, 6250, 7328, 9160, 10000, 11450, 12500, 18320, 20000, 22900, 25000, 28625, 36640, 45800, 50000, 57250, 91600, 100000, 114500, 143125, 183200, 229000, 286250, 458000, 572500, 715625, 916000, 1145000, 1431250, 2290000, 2862500, 4580000, 5725000, 11450000, 22900000]

約数ペア:

[(1, 22900000), (2, 11450000), (4, 5725000), (5, 4580000), (8, 2862500), (10, 2290000), (16, 1431250), (20, 1145000), (25, 916000), (32, 715625), (40, 572500), (50, 458000), (80, 286250), (100, 229000), (125, 183200), (160, 143125), (200, 114500), (229, 100000), (250, 91600), (400, 57250), (458, 50000), (500, 45800), (625, 36640), (800, 28625), (916, 25000), (1000, 22900), (1145, 20000), (1250, 18320), (1832, 12500), (2000, 11450), (2290, 10000), (2500, 9160), (3125, 7328), (3664, 6250), (4000, 5725), (4580, 5000)]