65336440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{389}}^1$

素因数の和:449

約数の個数: 128

約数和(自身を含む): 176904000

約数和(自身を除く): 111567560

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 19, 20, 26, 34, 38, 40, 52, 65, 68, 76, 85, 95, 104, 130, 136, 152, 170, 190, 221, 247, 260, 323, 340, 380, 389, 442, 494, 520, 646, 680, 760, 778, 884, 988, 1105, 1235, 1292, 1556, 1615, 1768, 1945, 1976, 2210, 2470, 2584, 3112, 3230, 3890, 4199, 4420, 4940, 5057, 6460, 6613, 7391, 7780, 8398, 8840, 9880, 10114, 12920, 13226, 14782, 15560, 16796, 20228, 20995, 25285, 26452, 29564, 33065, 33592, 36955, 40456, 41990, 50570, 52904, 59128, 66130, 73910, 83980, 85969, 96083, 101140, 125647, 132260, 147820, 167960, 171938, 192166, 202280, 251294, 264520, 295640, 343876, 384332, 429845, 480415, 502588, 628235, 687752, 768664, 859690, 960830, 1005176, 1256470, 1633411, 1719380, 1921660, 2512940, 3266822, 3438760, 3843320, 5025880, 6533644, 8167055, 13067288, 16334110, 32668220, 65336440]

約数ペア:

[(1, 65336440), (2, 32668220), (4, 16334110), (5, 13067288), (8, 8167055), (10, 6533644), (13, 5025880), (17, 3843320), (19, 3438760), (20, 3266822), (26, 2512940), (34, 1921660), (38, 1719380), (40, 1633411), (52, 1256470), (65, 1005176), (68, 960830), (76, 859690), (85, 768664), (95, 687752), (104, 628235), (130, 502588), (136, 480415), (152, 429845), (170, 384332), (190, 343876), (221, 295640), (247, 264520), (260, 251294), (323, 202280), (340, 192166), (380, 171938), (389, 167960), (442, 147820), (494, 132260), (520, 125647), (646, 101140), (680, 96083), (760, 85969), (778, 83980), (884, 73910), (988, 66130), (1105, 59128), (1235, 52904), (1292, 50570), (1556, 41990), (1615, 40456), (1768, 36955), (1945, 33592), (1976, 33065), (2210, 29564), (2470, 26452), (2584, 25285), (3112, 20995), (3230, 20228), (3890, 16796), (4199, 15560), (4420, 14782), (4940, 13226), (5057, 12920), (6460, 10114), (6613, 9880), (7391, 8840), (7780, 8398)]