17972500

素因数分解:

$2^2\times 5^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1$

素因数の和:123

約数の個数: 120

約数和(自身を含む): 48984320

約数和(自身を除く): 31011820

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 25, 26, 28, 35, 50, 52, 65, 70, 79, 91, 100, 125, 130, 140, 158, 175, 182, 250, 260, 316, 325, 350, 364, 395, 455, 500, 553, 625, 650, 700, 790, 875, 910, 1027, 1106, 1250, 1300, 1580, 1625, 1750, 1820, 1975, 2054, 2212, 2275, 2500, 2765, 3250, 3500, 3950, 4108, 4375, 4550, 5135, 5530, 6500, 7189, 7900, 8125, 8750, 9100, 9875, 10270, 11060, 11375, 13825, 14378, 16250, 17500, 19750, 20540, 22750, 25675, 27650, 28756, 32500, 35945, 39500, 45500, 49375, 51350, 55300, 56875, 69125, 71890, 98750, 102700, 113750, 128375, 138250, 143780, 179725, 197500, 227500, 256750, 276500, 345625, 359450, 513500, 641875, 691250, 718900, 898625, 1283750, 1382500, 1797250, 2567500, 3594500, 4493125, 8986250, 17972500]

約数ペア:

[(1, 17972500), (2, 8986250), (4, 4493125), (5, 3594500), (7, 2567500), (10, 1797250), (13, 1382500), (14, 1283750), (20, 898625), (25, 718900), (26, 691250), (28, 641875), (35, 513500), (50, 359450), (52, 345625), (65, 276500), (70, 256750), (79, 227500), (91, 197500), (100, 179725), (125, 143780), (130, 138250), (140, 128375), (158, 113750), (175, 102700), (182, 98750), (250, 71890), (260, 69125), (316, 56875), (325, 55300), (350, 51350), (364, 49375), (395, 45500), (455, 39500), (500, 35945), (553, 32500), (625, 28756), (650, 27650), (700, 25675), (790, 22750), (875, 20540), (910, 19750), (1027, 17500), (1106, 16250), (1250, 14378), (1300, 13825), (1580, 11375), (1625, 11060), (1750, 10270), (1820, 9875), (1975, 9100), (2054, 8750), (2212, 8125), (2275, 7900), (2500, 7189), (2765, 6500), (3250, 5530), (3500, 5135), (3950, 4550), (4108, 4375)]