251888520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{2647}}^1$

素因数の和:2735

約数の個数: 128

約数和(自身を含む): 827447040

約数和(自身を除く): 575558520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 61, 65, 78, 104, 120, 122, 130, 156, 183, 195, 244, 260, 305, 312, 366, 390, 488, 520, 610, 732, 780, 793, 915, 1220, 1464, 1560, 1586, 1830, 2379, 2440, 2647, 3172, 3660, 3965, 4758, 5294, 6344, 7320, 7930, 7941, 9516, 10588, 11895, 13235, 15860, 15882, 19032, 21176, 23790, 26470, 31720, 31764, 34411, 39705, 47580, 52940, 63528, 68822, 79410, 95160, 103233, 105880, 137644, 158820, 161467, 172055, 206466, 275288, 317640, 322934, 344110, 412932, 484401, 516165, 645868, 688220, 807335, 825864, 968802, 1032330, 1291736, 1376440, 1614670, 1937604, 2064660, 2099071, 2422005, 3229340, 3875208, 4129320, 4198142, 4844010, 6297213, 6458680, 8396284, 9688020, 10495355, 12594426, 16792568, 19376040, 20990710, 25188852, 31486065, 41981420, 50377704, 62972130, 83962840, 125944260, 251888520]

約数ペア:

[(1, 251888520), (2, 125944260), (3, 83962840), (4, 62972130), (5, 50377704), (6, 41981420), (8, 31486065), (10, 25188852), (12, 20990710), (13, 19376040), (15, 16792568), (20, 12594426), (24, 10495355), (26, 9688020), (30, 8396284), (39, 6458680), (40, 6297213), (52, 4844010), (60, 4198142), (61, 4129320), (65, 3875208), (78, 3229340), (104, 2422005), (120, 2099071), (122, 2064660), (130, 1937604), (156, 1614670), (183, 1376440), (195, 1291736), (244, 1032330), (260, 968802), (305, 825864), (312, 807335), (366, 688220), (390, 645868), (488, 516165), (520, 484401), (610, 412932), (732, 344110), (780, 322934), (793, 317640), (915, 275288), (1220, 206466), (1464, 172055), (1560, 161467), (1586, 158820), (1830, 137644), (2379, 105880), (2440, 103233), (2647, 95160), (3172, 79410), (3660, 68822), (3965, 63528), (4758, 52940), (5294, 47580), (6344, 39705), (7320, 34411), (7930, 31764), (7941, 31720), (9516, 26470), (10588, 23790), (11895, 21176), (13235, 19032), (15860, 15882)]