30988880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{359}}^1$

素因数の和:468

約数の個数: 80

約数和(自身を含む): 78744960

約数和(自身を除く): 47756080

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 83, 104, 130, 166, 208, 260, 332, 359, 415, 520, 664, 718, 830, 1040, 1079, 1328, 1436, 1660, 1795, 2158, 2872, 3320, 3590, 4316, 4667, 5395, 5744, 6640, 7180, 8632, 9334, 10790, 14360, 17264, 18668, 21580, 23335, 28720, 29797, 37336, 43160, 46670, 59594, 74672, 86320, 93340, 119188, 148985, 186680, 238376, 297970, 373360, 387361, 476752, 595940, 774722, 1191880, 1549444, 1936805, 2383760, 3098888, 3873610, 6197776, 7747220, 15494440, 30988880]

約数ペア:

[(1, 30988880), (2, 15494440), (4, 7747220), (5, 6197776), (8, 3873610), (10, 3098888), (13, 2383760), (16, 1936805), (20, 1549444), (26, 1191880), (40, 774722), (52, 595940), (65, 476752), (80, 387361), (83, 373360), (104, 297970), (130, 238376), (166, 186680), (208, 148985), (260, 119188), (332, 93340), (359, 86320), (415, 74672), (520, 59594), (664, 46670), (718, 43160), (830, 37336), (1040, 29797), (1079, 28720), (1328, 23335), (1436, 21580), (1660, 18668), (1795, 17264), (2158, 14360), (2872, 10790), (3320, 9334), (3590, 8632), (4316, 7180), (4667, 6640), (5395, 5744)]