20139680440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^3\times {\mathrm{23}}^1\times {\mathrm{16447}}^1$

素因数の和:16514

約数の個数: 128

約数和(自身を含む): 52012523520

約数和(自身を除く): 31872843080

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 40, 44, 46, 55, 88, 92, 110, 115, 121, 184, 220, 230, 242, 253, 440, 460, 484, 506, 605, 920, 968, 1012, 1210, 1265, 1331, 2024, 2420, 2530, 2662, 2783, 4840, 5060, 5324, 5566, 6655, 10120, 10648, 11132, 13310, 13915, 16447, 22264, 26620, 27830, 30613, 32894, 53240, 55660, 61226, 65788, 82235, 111320, 122452, 131576, 153065, 164470, 180917, 244904, 306130, 328940, 361834, 378281, 612260, 657880, 723668, 756562, 904585, 1224520, 1447336, 1513124, 1809170, 1891405, 1990087, 3026248, 3618340, 3782810, 3980174, 4161091, 7236680, 7565620, 7960348, 8322182, 9950435, 15131240, 15920696, 16644364, 19900870, 20805455, 21890957, 33288728, 39801740, 41610910, 43781914, 45772001, 79603480, 83221820, 87563828, 91544002, 109454785, 166443640, 175127656, 183088004, 218909570, 228860005, 366176008, 437819140, 457720010, 503492011, 875638280, 915440020, 1006984022, 1830880040, 2013968044, 2517460055, 4027936088, 5034920110, 10069840220, 20139680440]

約数ペア:

[(1, 20139680440), (2, 10069840220), (4, 5034920110), (5, 4027936088), (8, 2517460055), (10, 2013968044), (11, 1830880040), (20, 1006984022), (22, 915440020), (23, 875638280), (40, 503492011), (44, 457720010), (46, 437819140), (55, 366176008), (88, 228860005), (92, 218909570), (110, 183088004), (115, 175127656), (121, 166443640), (184, 109454785), (220, 91544002), (230, 87563828), (242, 83221820), (253, 79603480), (440, 45772001), (460, 43781914), (484, 41610910), (506, 39801740), (605, 33288728), (920, 21890957), (968, 20805455), (1012, 19900870), (1210, 16644364), (1265, 15920696), (1331, 15131240), (2024, 9950435), (2420, 8322182), (2530, 7960348), (2662, 7565620), (2783, 7236680), (4840, 4161091), (5060, 3980174), (5324, 3782810), (5566, 3618340), (6655, 3026248), (10120, 1990087), (10648, 1891405), (11132, 1809170), (13310, 1513124), (13915, 1447336), (16447, 1224520), (22264, 904585), (26620, 756562), (27830, 723668), (30613, 657880), (32894, 612260), (53240, 378281), (55660, 361834), (61226, 328940), (65788, 306130), (82235, 244904), (111320, 180917), (122452, 164470), (131576, 153065)]