28771120

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{619}}^1$

素因数の和:722

約数の個数: 80

約数和(自身を含む): 77495040

約数和(自身を除く): 48723920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 83, 112, 140, 166, 280, 332, 415, 560, 581, 619, 664, 830, 1162, 1238, 1328, 1660, 2324, 2476, 2905, 3095, 3320, 4333, 4648, 4952, 5810, 6190, 6640, 8666, 9296, 9904, 11620, 12380, 17332, 21665, 23240, 24760, 34664, 43330, 46480, 49520, 51377, 69328, 86660, 102754, 173320, 205508, 256885, 346640, 359639, 411016, 513770, 719278, 822032, 1027540, 1438556, 1798195, 2055080, 2877112, 3596390, 4110160, 5754224, 7192780, 14385560, 28771120]

約数ペア:

[(1, 28771120), (2, 14385560), (4, 7192780), (5, 5754224), (7, 4110160), (8, 3596390), (10, 2877112), (14, 2055080), (16, 1798195), (20, 1438556), (28, 1027540), (35, 822032), (40, 719278), (56, 513770), (70, 411016), (80, 359639), (83, 346640), (112, 256885), (140, 205508), (166, 173320), (280, 102754), (332, 86660), (415, 69328), (560, 51377), (581, 49520), (619, 46480), (664, 43330), (830, 34664), (1162, 24760), (1238, 23240), (1328, 21665), (1660, 17332), (2324, 12380), (2476, 11620), (2905, 9904), (3095, 9296), (3320, 8666), (4333, 6640), (4648, 6190), (4952, 5810)]