208012500

素因数分解:

$2^2\times 3^2\times 5^5\times {\mathrm{43}}^2$

素因数の和:121

約数の個数: 162

約数和(自身を含む): 672859278

約数和(自身を除く): 464846778

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 43, 45, 50, 60, 75, 86, 90, 100, 125, 129, 150, 172, 180, 215, 225, 250, 258, 300, 375, 387, 430, 450, 500, 516, 625, 645, 750, 774, 860, 900, 1075, 1125, 1250, 1290, 1500, 1548, 1849, 1875, 1935, 2150, 2250, 2500, 2580, 3125, 3225, 3698, 3750, 3870, 4300, 4500, 5375, 5547, 5625, 6250, 6450, 7396, 7500, 7740, 9245, 9375, 9675, 10750, 11094, 11250, 12500, 12900, 16125, 16641, 18490, 18750, 19350, 21500, 22188, 22500, 26875, 27735, 28125, 32250, 33282, 36980, 37500, 38700, 46225, 48375, 53750, 55470, 56250, 64500, 66564, 80625, 83205, 92450, 96750, 107500, 110940, 112500, 134375, 138675, 161250, 166410, 184900, 193500, 231125, 241875, 268750, 277350, 322500, 332820, 403125, 416025, 462250, 483750, 537500, 554700, 693375, 806250, 832050, 924500, 967500, 1155625, 1209375, 1386750, 1612500, 1664100, 2080125, 2311250, 2418750, 2773500, 3466875, 4160250, 4622500, 4837500, 5778125, 6933750, 8320500, 10400625, 11556250, 13867500, 17334375, 20801250, 23112500, 34668750, 41602500, 52003125, 69337500, 104006250, 208012500]

約数ペア:

[(1, 208012500), (2, 104006250), (3, 69337500), (4, 52003125), (5, 41602500), (6, 34668750), (9, 23112500), (10, 20801250), (12, 17334375), (15, 13867500), (18, 11556250), (20, 10400625), (25, 8320500), (30, 6933750), (36, 5778125), (43, 4837500), (45, 4622500), (50, 4160250), (60, 3466875), (75, 2773500), (86, 2418750), (90, 2311250), (100, 2080125), (125, 1664100), (129, 1612500), (150, 1386750), (172, 1209375), (180, 1155625), (215, 967500), (225, 924500), (250, 832050), (258, 806250), (300, 693375), (375, 554700), (387, 537500), (430, 483750), (450, 462250), (500, 416025), (516, 403125), (625, 332820), (645, 322500), (750, 277350), (774, 268750), (860, 241875), (900, 231125), (1075, 193500), (1125, 184900), (1250, 166410), (1290, 161250), (1500, 138675), (1548, 134375), (1849, 112500), (1875, 110940), (1935, 107500), (2150, 96750), (2250, 92450), (2500, 83205), (2580, 80625), (3125, 66564), (3225, 64500), (3698, 56250), (3750, 55470), (3870, 53750), (4300, 48375), (4500, 46225), (5375, 38700), (5547, 37500), (5625, 36980), (6250, 33282), (6450, 32250), (7396, 28125), (7500, 27735), (7740, 26875), (9245, 22500), (9375, 22188), (9675, 21500), (10750, 19350), (11094, 18750), (11250, 18490), (12500, 16641), (12900, 16125)]