18754450

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:140

約数の個数: 96

約数和(自身を含む): 42622272

約数和(自身を除く): 23867822

約数列:

[1, 2, 5, 10, 11, 13, 22, 25, 26, 43, 50, 55, 61, 65, 86, 110, 122, 130, 143, 215, 275, 286, 305, 325, 430, 473, 550, 559, 610, 650, 671, 715, 793, 946, 1075, 1118, 1342, 1430, 1525, 1586, 2150, 2365, 2623, 2795, 3050, 3355, 3575, 3965, 4730, 5246, 5590, 6149, 6710, 7150, 7930, 8723, 11825, 12298, 13115, 13975, 16775, 17446, 19825, 23650, 26230, 27950, 28853, 30745, 33550, 34099, 39650, 43615, 57706, 61490, 65575, 68198, 87230, 131150, 144265, 153725, 170495, 218075, 288530, 307450, 340990, 375089, 436150, 721325, 750178, 852475, 1442650, 1704950, 1875445, 3750890, 9377225, 18754450]

約数ペア:

[(1, 18754450), (2, 9377225), (5, 3750890), (10, 1875445), (11, 1704950), (13, 1442650), (22, 852475), (25, 750178), (26, 721325), (43, 436150), (50, 375089), (55, 340990), (61, 307450), (65, 288530), (86, 218075), (110, 170495), (122, 153725), (130, 144265), (143, 131150), (215, 87230), (275, 68198), (286, 65575), (305, 61490), (325, 57706), (430, 43615), (473, 39650), (550, 34099), (559, 33550), (610, 30745), (650, 28853), (671, 27950), (715, 26230), (793, 23650), (946, 19825), (1075, 17446), (1118, 16775), (1342, 13975), (1430, 13115), (1525, 12298), (1586, 11825), (2150, 8723), (2365, 7930), (2623, 7150), (2795, 6710), (3050, 6149), (3355, 5590), (3575, 5246), (3965, 4730)]