27889840

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{773}}^1$

素因数の和:838

約数の個数: 80

約数和(自身を含む): 72557856

約数和(自身を除く): 44668016

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 41, 44, 55, 80, 82, 88, 110, 164, 176, 205, 220, 328, 410, 440, 451, 656, 773, 820, 880, 902, 1546, 1640, 1804, 2255, 3092, 3280, 3608, 3865, 4510, 6184, 7216, 7730, 8503, 9020, 12368, 15460, 17006, 18040, 30920, 31693, 34012, 36080, 42515, 61840, 63386, 68024, 85030, 126772, 136048, 158465, 170060, 253544, 316930, 340120, 348623, 507088, 633860, 680240, 697246, 1267720, 1394492, 1743115, 2535440, 2788984, 3486230, 5577968, 6972460, 13944920, 27889840]

約数ペア:

[(1, 27889840), (2, 13944920), (4, 6972460), (5, 5577968), (8, 3486230), (10, 2788984), (11, 2535440), (16, 1743115), (20, 1394492), (22, 1267720), (40, 697246), (41, 680240), (44, 633860), (55, 507088), (80, 348623), (82, 340120), (88, 316930), (110, 253544), (164, 170060), (176, 158465), (205, 136048), (220, 126772), (328, 85030), (410, 68024), (440, 63386), (451, 61840), (656, 42515), (773, 36080), (820, 34012), (880, 31693), (902, 30920), (1546, 18040), (1640, 17006), (1804, 15460), (2255, 12368), (3092, 9020), (3280, 8503), (3608, 7730), (3865, 7216), (4510, 6184)]