28944980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^3\times {\mathrm{211}}^1$

素因数の和:277

約数の個数: 48

約数和(自身を含む): 64464960

約数和(自身を除く): 35519980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 211, 361, 380, 422, 722, 844, 1055, 1444, 1805, 2110, 3610, 4009, 4220, 6859, 7220, 8018, 13718, 16036, 20045, 27436, 34295, 40090, 68590, 76171, 80180, 137180, 152342, 304684, 380855, 761710, 1447249, 1523420, 2894498, 5788996, 7236245, 14472490, 28944980]

約数ペア:

[(1, 28944980), (2, 14472490), (4, 7236245), (5, 5788996), (10, 2894498), (19, 1523420), (20, 1447249), (38, 761710), (76, 380855), (95, 304684), (190, 152342), (211, 137180), (361, 80180), (380, 76171), (422, 68590), (722, 40090), (844, 34295), (1055, 27436), (1444, 20045), (1805, 16036), (2110, 13718), (3610, 8018), (4009, 7220), (4220, 6859)]