28691960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{1069}}^1$

素因数の和:1152

約数の個数: 64

約数和(自身を含む): 71647200

約数和(自身を除く): 42955240

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 61, 88, 110, 122, 220, 244, 305, 440, 488, 610, 671, 1069, 1220, 1342, 2138, 2440, 2684, 3355, 4276, 5345, 5368, 6710, 8552, 10690, 11759, 13420, 21380, 23518, 26840, 42760, 47036, 58795, 65209, 94072, 117590, 130418, 235180, 260836, 326045, 470360, 521672, 652090, 717299, 1304180, 1434598, 2608360, 2869196, 3586495, 5738392, 7172990, 14345980, 28691960]

約数ペア:

[(1, 28691960), (2, 14345980), (4, 7172990), (5, 5738392), (8, 3586495), (10, 2869196), (11, 2608360), (20, 1434598), (22, 1304180), (40, 717299), (44, 652090), (55, 521672), (61, 470360), (88, 326045), (110, 260836), (122, 235180), (220, 130418), (244, 117590), (305, 94072), (440, 65209), (488, 58795), (610, 47036), (671, 42760), (1069, 26840), (1220, 23518), (1342, 21380), (2138, 13420), (2440, 11759), (2684, 10690), (3355, 8552), (4276, 6710), (5345, 5368)]