15721740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{4597}}^1$

素因数の和:4631

約数の個数: 72

約数和(自身を含む): 50210160

約数和(自身を除く): 34488420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 4597, 9194, 13791, 18388, 22985, 27582, 41373, 45970, 55164, 68955, 82746, 87343, 91940, 137910, 165492, 174686, 206865, 262029, 275820, 349372, 413730, 436715, 524058, 786087, 827460, 873430, 1048116, 1310145, 1572174, 1746860, 2620290, 3144348, 3930435, 5240580, 7860870, 15721740]

約数ペア:

[(1, 15721740), (2, 7860870), (3, 5240580), (4, 3930435), (5, 3144348), (6, 2620290), (9, 1746860), (10, 1572174), (12, 1310145), (15, 1048116), (18, 873430), (19, 827460), (20, 786087), (30, 524058), (36, 436715), (38, 413730), (45, 349372), (57, 275820), (60, 262029), (76, 206865), (90, 174686), (95, 165492), (114, 137910), (171, 91940), (180, 87343), (190, 82746), (228, 68955), (285, 55164), (342, 45970), (380, 41373), (570, 27582), (684, 22985), (855, 18388), (1140, 13791), (1710, 9194), (3420, 4597)]