28103470

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1$

素因数の和:217

約数の個数: 64

約数和(自身を含む): 57024000

約数和(自身を除く): 28920530

約数列:

[1, 2, 5, 10, 19, 23, 38, 46, 59, 95, 109, 115, 118, 190, 218, 230, 295, 437, 545, 590, 874, 1090, 1121, 1357, 2071, 2185, 2242, 2507, 2714, 4142, 4370, 5014, 5605, 6431, 6785, 10355, 11210, 12535, 12862, 13570, 20710, 25070, 25783, 32155, 47633, 51566, 64310, 95266, 122189, 128915, 147913, 238165, 244378, 257830, 295826, 476330, 610945, 739565, 1221890, 1479130, 2810347, 5620694, 14051735, 28103470]

約数ペア:

[(1, 28103470), (2, 14051735), (5, 5620694), (10, 2810347), (19, 1479130), (23, 1221890), (38, 739565), (46, 610945), (59, 476330), (95, 295826), (109, 257830), (115, 244378), (118, 238165), (190, 147913), (218, 128915), (230, 122189), (295, 95266), (437, 64310), (545, 51566), (590, 47633), (874, 32155), (1090, 25783), (1121, 25070), (1357, 20710), (2071, 13570), (2185, 12862), (2242, 12535), (2507, 11210), (2714, 10355), (4142, 6785), (4370, 6431), (5014, 5605)]