131525120

素因数分解:

$2^9\times 5^1\times {\mathrm{83}}^1\times {\mathrm{619}}^1$

素因数の和:725

約数の個数: 80

約数和(自身を含む): 319667040

約数和(自身を除く): 188141920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 83, 128, 160, 166, 256, 320, 332, 415, 512, 619, 640, 664, 830, 1238, 1280, 1328, 1660, 2476, 2560, 2656, 3095, 3320, 4952, 5312, 6190, 6640, 9904, 10624, 12380, 13280, 19808, 21248, 24760, 26560, 39616, 42496, 49520, 51377, 53120, 79232, 99040, 102754, 106240, 158464, 198080, 205508, 212480, 256885, 316928, 396160, 411016, 513770, 792320, 822032, 1027540, 1584640, 1644064, 2055080, 3288128, 4110160, 6576256, 8220320, 13152512, 16440640, 26305024, 32881280, 65762560, 131525120]

約数ペア:

[(1, 131525120), (2, 65762560), (4, 32881280), (5, 26305024), (8, 16440640), (10, 13152512), (16, 8220320), (20, 6576256), (32, 4110160), (40, 3288128), (64, 2055080), (80, 1644064), (83, 1584640), (128, 1027540), (160, 822032), (166, 792320), (256, 513770), (320, 411016), (332, 396160), (415, 316928), (512, 256885), (619, 212480), (640, 205508), (664, 198080), (830, 158464), (1238, 106240), (1280, 102754), (1328, 99040), (1660, 79232), (2476, 53120), (2560, 51377), (2656, 49520), (3095, 42496), (3320, 39616), (4952, 26560), (5312, 24760), (6190, 21248), (6640, 19808), (9904, 13280), (10624, 12380)]