90969040

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{66889}}^1$

素因数の和:66919

約数の個数: 40

約数和(自身を含む): 223947720

約数和(自身を除く): 132978680

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 66889, 133778, 267556, 334445, 535112, 668890, 1070224, 1137113, 1337780, 2274226, 2675560, 4548452, 5351120, 5685565, 9096904, 11371130, 18193808, 22742260, 45484520, 90969040]

約数ペア:

[(1, 90969040), (2, 45484520), (4, 22742260), (5, 18193808), (8, 11371130), (10, 9096904), (16, 5685565), (17, 5351120), (20, 4548452), (34, 2675560), (40, 2274226), (68, 1337780), (80, 1137113), (85, 1070224), (136, 668890), (170, 535112), (272, 334445), (340, 267556), (680, 133778), (1360, 66889)]