72511780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{8039}}^1$

素因数の和:8100

約数の個数: 48

約数和(自身を含む): 170190720

約数和(自身を除く): 97678940

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 164, 205, 220, 410, 451, 820, 902, 1804, 2255, 4510, 8039, 9020, 16078, 32156, 40195, 80390, 88429, 160780, 176858, 329599, 353716, 442145, 659198, 884290, 1318396, 1647995, 1768580, 3295990, 3625589, 6591980, 7251178, 14502356, 18127945, 36255890, 72511780]

約数ペア:

[(1, 72511780), (2, 36255890), (4, 18127945), (5, 14502356), (10, 7251178), (11, 6591980), (20, 3625589), (22, 3295990), (41, 1768580), (44, 1647995), (55, 1318396), (82, 884290), (110, 659198), (164, 442145), (205, 353716), (220, 329599), (410, 176858), (451, 160780), (820, 88429), (902, 80390), (1804, 40195), (2255, 32156), (4510, 16078), (8039, 9020)]