1728860120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{977}}^1$

素因数の和:1125

約数の個数: 128

約数和(自身を含む): 4347483840

約数和(自身を除く): 2618623720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 41, 52, 65, 82, 83, 104, 130, 164, 166, 205, 260, 328, 332, 410, 415, 520, 533, 664, 820, 830, 977, 1066, 1079, 1640, 1660, 1954, 2132, 2158, 2665, 3320, 3403, 3908, 4264, 4316, 4885, 5330, 5395, 6806, 7816, 8632, 9770, 10660, 10790, 12701, 13612, 17015, 19540, 21320, 21580, 25402, 27224, 34030, 39080, 40057, 43160, 44239, 50804, 63505, 68060, 80114, 81091, 88478, 101608, 127010, 136120, 160228, 162182, 176956, 200285, 221195, 254020, 320456, 324364, 353912, 400570, 405455, 442390, 508040, 520741, 648728, 801140, 810910, 884780, 1041482, 1054183, 1602280, 1621820, 1769560, 2082964, 2108366, 2603705, 3243640, 3324731, 4165928, 4216732, 5207410, 5270915, 6649462, 8433464, 10414820, 10541830, 13298924, 16623655, 20829640, 21083660, 26597848, 33247310, 42167320, 43221503, 66494620, 86443006, 132989240, 172886012, 216107515, 345772024, 432215030, 864430060, 1728860120]

約数ペア:

[(1, 1728860120), (2, 864430060), (4, 432215030), (5, 345772024), (8, 216107515), (10, 172886012), (13, 132989240), (20, 86443006), (26, 66494620), (40, 43221503), (41, 42167320), (52, 33247310), (65, 26597848), (82, 21083660), (83, 20829640), (104, 16623655), (130, 13298924), (164, 10541830), (166, 10414820), (205, 8433464), (260, 6649462), (328, 5270915), (332, 5207410), (410, 4216732), (415, 4165928), (520, 3324731), (533, 3243640), (664, 2603705), (820, 2108366), (830, 2082964), (977, 1769560), (1066, 1621820), (1079, 1602280), (1640, 1054183), (1660, 1041482), (1954, 884780), (2132, 810910), (2158, 801140), (2665, 648728), (3320, 520741), (3403, 508040), (3908, 442390), (4264, 405455), (4316, 400570), (4885, 353912), (5330, 324364), (5395, 320456), (6806, 254020), (7816, 221195), (8632, 200285), (9770, 176956), (10660, 162182), (10790, 160228), (12701, 136120), (13612, 127010), (17015, 101608), (19540, 88478), (21320, 81091), (21580, 80114), (25402, 68060), (27224, 63505), (34030, 50804), (39080, 44239), (40057, 43160)]