18950240

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{6967}}^1$

素因数の和:6999

約数の個数: 48

約数和(自身を含む): 47410272

約数和(自身を除く): 28460032

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 160, 170, 272, 340, 544, 680, 1360, 2720, 6967, 13934, 27868, 34835, 55736, 69670, 111472, 118439, 139340, 222944, 236878, 278680, 473756, 557360, 592195, 947512, 1114720, 1184390, 1895024, 2368780, 3790048, 4737560, 9475120, 18950240]

約数ペア:

[(1, 18950240), (2, 9475120), (4, 4737560), (5, 3790048), (8, 2368780), (10, 1895024), (16, 1184390), (17, 1114720), (20, 947512), (32, 592195), (34, 557360), (40, 473756), (68, 278680), (80, 236878), (85, 222944), (136, 139340), (160, 118439), (170, 111472), (272, 69670), (340, 55736), (544, 34835), (680, 27868), (1360, 13934), (2720, 6967)]