1998934900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{431}}^1\times {\mathrm{2441}}^1$

素因数の和:2905

約数の個数: 72

約数和(自身を含む): 4578456960

約数和(自身を除く): 2579522060

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 380, 431, 475, 862, 950, 1724, 1900, 2155, 2441, 4310, 4882, 8189, 8620, 9764, 10775, 12205, 16378, 21550, 24410, 32756, 40945, 43100, 46379, 48820, 61025, 81890, 92758, 122050, 163780, 185516, 204725, 231895, 244100, 409450, 463790, 818900, 927580, 1052071, 1159475, 2104142, 2318950, 4208284, 4637900, 5260355, 10520710, 19989349, 21041420, 26301775, 39978698, 52603550, 79957396, 99946745, 105207100, 199893490, 399786980, 499733725, 999467450, 1998934900]

約数ペア:

[(1, 1998934900), (2, 999467450), (4, 499733725), (5, 399786980), (10, 199893490), (19, 105207100), (20, 99946745), (25, 79957396), (38, 52603550), (50, 39978698), (76, 26301775), (95, 21041420), (100, 19989349), (190, 10520710), (380, 5260355), (431, 4637900), (475, 4208284), (862, 2318950), (950, 2104142), (1724, 1159475), (1900, 1052071), (2155, 927580), (2441, 818900), (4310, 463790), (4882, 409450), (8189, 244100), (8620, 231895), (9764, 204725), (10775, 185516), (12205, 163780), (16378, 122050), (21550, 92758), (24410, 81890), (32756, 61025), (40945, 48820), (43100, 46379)]