205253750

素因数分解:

$2^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{743}}^1$

素因数の和:795

約数の個数: 80

約数和(自身を含む): 439284384

約数和(自身を除く): 234030634

約数列:

[1, 2, 5, 10, 13, 17, 25, 26, 34, 50, 65, 85, 125, 130, 170, 221, 250, 325, 425, 442, 625, 650, 743, 850, 1105, 1250, 1486, 1625, 2125, 2210, 3250, 3715, 4250, 5525, 7430, 8125, 9659, 10625, 11050, 12631, 16250, 18575, 19318, 21250, 25262, 27625, 37150, 48295, 55250, 63155, 92875, 96590, 126310, 138125, 164203, 185750, 241475, 276250, 315775, 328406, 464375, 482950, 631550, 821015, 928750, 1207375, 1578875, 1642030, 2414750, 3157750, 4105075, 6036875, 7894375, 8210150, 12073750, 15788750, 20525375, 41050750, 102626875, 205253750]

約数ペア:

[(1, 205253750), (2, 102626875), (5, 41050750), (10, 20525375), (13, 15788750), (17, 12073750), (25, 8210150), (26, 7894375), (34, 6036875), (50, 4105075), (65, 3157750), (85, 2414750), (125, 1642030), (130, 1578875), (170, 1207375), (221, 928750), (250, 821015), (325, 631550), (425, 482950), (442, 464375), (625, 328406), (650, 315775), (743, 276250), (850, 241475), (1105, 185750), (1250, 164203), (1486, 138125), (1625, 126310), (2125, 96590), (2210, 92875), (3250, 63155), (3715, 55250), (4250, 48295), (5525, 37150), (7430, 27625), (8125, 25262), (9659, 21250), (10625, 19318), (11050, 18575), (12631, 16250)]