28078740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{3319}}^1$

素因数の和:3381

約数の個数: 72

約数和(自身を含む): 87010560

約数和(自身を除く): 58931820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 47, 60, 90, 94, 141, 180, 188, 235, 282, 423, 470, 564, 705, 846, 940, 1410, 1692, 2115, 2820, 3319, 4230, 6638, 8460, 9957, 13276, 16595, 19914, 29871, 33190, 39828, 49785, 59742, 66380, 99570, 119484, 149355, 155993, 199140, 298710, 311986, 467979, 597420, 623972, 779965, 935958, 1403937, 1559930, 1871916, 2339895, 2807874, 3119860, 4679790, 5615748, 7019685, 9359580, 14039370, 28078740]

約数ペア:

[(1, 28078740), (2, 14039370), (3, 9359580), (4, 7019685), (5, 5615748), (6, 4679790), (9, 3119860), (10, 2807874), (12, 2339895), (15, 1871916), (18, 1559930), (20, 1403937), (30, 935958), (36, 779965), (45, 623972), (47, 597420), (60, 467979), (90, 311986), (94, 298710), (141, 199140), (180, 155993), (188, 149355), (235, 119484), (282, 99570), (423, 66380), (470, 59742), (564, 49785), (705, 39828), (846, 33190), (940, 29871), (1410, 19914), (1692, 16595), (2115, 13276), (2820, 9957), (3319, 8460), (4230, 6638)]