29999000

素因数分解:

$2^3\times 5^3\times {\mathrm{131}}^1\times {\mathrm{229}}^1$

素因数の和:381

約数の個数: 64

約数和(自身を含む): 71042400

約数和(自身を除く): 41043400

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 131, 200, 229, 250, 262, 458, 500, 524, 655, 916, 1000, 1048, 1145, 1310, 1832, 2290, 2620, 3275, 4580, 5240, 5725, 6550, 9160, 11450, 13100, 16375, 22900, 26200, 28625, 29999, 32750, 45800, 57250, 59998, 65500, 114500, 119996, 131000, 149995, 229000, 239992, 299990, 599980, 749975, 1199960, 1499950, 2999900, 3749875, 5999800, 7499750, 14999500, 29999000]

約数ペア:

[(1, 29999000), (2, 14999500), (4, 7499750), (5, 5999800), (8, 3749875), (10, 2999900), (20, 1499950), (25, 1199960), (40, 749975), (50, 599980), (100, 299990), (125, 239992), (131, 229000), (200, 149995), (229, 131000), (250, 119996), (262, 114500), (458, 65500), (500, 59998), (524, 57250), (655, 45800), (916, 32750), (1000, 29999), (1048, 28625), (1145, 26200), (1310, 22900), (1832, 16375), (2290, 13100), (2620, 11450), (3275, 9160), (4580, 6550), (5240, 5725)]