660405680

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{5399}}^1$

素因数の和:5562

約数の個数: 80

約数和(自身を含む): 1687392000

約数和(自身を除く): 1026986320

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 139, 176, 220, 278, 440, 556, 695, 880, 1112, 1390, 1529, 2224, 2780, 3058, 5399, 5560, 6116, 7645, 10798, 11120, 12232, 15290, 21596, 24464, 26995, 30580, 43192, 53990, 59389, 61160, 86384, 107980, 118778, 122320, 215960, 237556, 296945, 431920, 475112, 593890, 750461, 950224, 1187780, 1500922, 2375560, 3001844, 3752305, 4751120, 6003688, 7504610, 8255071, 12007376, 15009220, 16510142, 30018440, 33020284, 41275355, 60036880, 66040568, 82550710, 132081136, 165101420, 330202840, 660405680]

約数ペア:

[(1, 660405680), (2, 330202840), (4, 165101420), (5, 132081136), (8, 82550710), (10, 66040568), (11, 60036880), (16, 41275355), (20, 33020284), (22, 30018440), (40, 16510142), (44, 15009220), (55, 12007376), (80, 8255071), (88, 7504610), (110, 6003688), (139, 4751120), (176, 3752305), (220, 3001844), (278, 2375560), (440, 1500922), (556, 1187780), (695, 950224), (880, 750461), (1112, 593890), (1390, 475112), (1529, 431920), (2224, 296945), (2780, 237556), (3058, 215960), (5399, 122320), (5560, 118778), (6116, 107980), (7645, 86384), (10798, 61160), (11120, 59389), (12232, 53990), (15290, 43192), (21596, 30580), (24464, 26995)]