203138520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{661}}^1$

素因数の和:885

約数の個数: 128

約数和(自身を含む): 660623040

約数和(自身を除く): 457484520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 197, 260, 312, 390, 394, 520, 591, 661, 780, 788, 985, 1182, 1322, 1560, 1576, 1970, 1983, 2364, 2561, 2644, 2955, 3305, 3940, 3966, 4728, 5122, 5288, 5910, 6610, 7683, 7880, 7932, 8593, 9915, 10244, 11820, 12805, 13220, 15366, 15864, 17186, 19830, 20488, 23640, 25610, 25779, 26440, 30732, 34372, 38415, 39660, 42965, 51220, 51558, 61464, 68744, 76830, 79320, 85930, 102440, 103116, 128895, 130217, 153660, 171860, 206232, 257790, 260434, 307320, 343720, 390651, 515580, 520868, 651085, 781302, 1031160, 1041736, 1302170, 1562604, 1692821, 1953255, 2604340, 3125208, 3385642, 3906510, 5078463, 5208680, 6771284, 7813020, 8464105, 10156926, 13542568, 15626040, 16928210, 20313852, 25392315, 33856420, 40627704, 50784630, 67712840, 101569260, 203138520]

約数ペア:

[(1, 203138520), (2, 101569260), (3, 67712840), (4, 50784630), (5, 40627704), (6, 33856420), (8, 25392315), (10, 20313852), (12, 16928210), (13, 15626040), (15, 13542568), (20, 10156926), (24, 8464105), (26, 7813020), (30, 6771284), (39, 5208680), (40, 5078463), (52, 3906510), (60, 3385642), (65, 3125208), (78, 2604340), (104, 1953255), (120, 1692821), (130, 1562604), (156, 1302170), (195, 1041736), (197, 1031160), (260, 781302), (312, 651085), (390, 520868), (394, 515580), (520, 390651), (591, 343720), (661, 307320), (780, 260434), (788, 257790), (985, 206232), (1182, 171860), (1322, 153660), (1560, 130217), (1576, 128895), (1970, 103116), (1983, 102440), (2364, 85930), (2561, 79320), (2644, 76830), (2955, 68744), (3305, 61464), (3940, 51558), (3966, 51220), (4728, 42965), (5122, 39660), (5288, 38415), (5910, 34372), (6610, 30732), (7683, 26440), (7880, 25779), (7932, 25610), (8593, 23640), (9915, 20488), (10244, 19830), (11820, 17186), (12805, 15864), (13220, 15366)]