28042480

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^2\times {\mathrm{971}}^1$

素因数の和:1022

約数の個数: 60

約数和(自身を含む): 68881752

約数和(自身を除く): 40839272

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 361, 380, 722, 760, 971, 1444, 1520, 1805, 1942, 2888, 3610, 3884, 4855, 5776, 7220, 7768, 9710, 14440, 15536, 18449, 19420, 28880, 36898, 38840, 73796, 77680, 92245, 147592, 184490, 295184, 350531, 368980, 701062, 737960, 1402124, 1475920, 1752655, 2804248, 3505310, 5608496, 7010620, 14021240, 28042480]

約数ペア:

[(1, 28042480), (2, 14021240), (4, 7010620), (5, 5608496), (8, 3505310), (10, 2804248), (16, 1752655), (19, 1475920), (20, 1402124), (38, 737960), (40, 701062), (76, 368980), (80, 350531), (95, 295184), (152, 184490), (190, 147592), (304, 92245), (361, 77680), (380, 73796), (722, 38840), (760, 36898), (971, 28880), (1444, 19420), (1520, 18449), (1805, 15536), (1942, 14440), (2888, 9710), (3610, 7768), (3884, 7220), (4855, 5776)]