208146640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{193}}^1$

素因数の和:297

約数の個数: 160

約数和(自身を含む): 563776416

約数和(自身を除く): 355629776

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 34, 40, 52, 61, 65, 68, 80, 85, 104, 122, 130, 136, 170, 193, 208, 221, 244, 260, 272, 305, 340, 386, 442, 488, 520, 610, 680, 772, 793, 884, 965, 976, 1037, 1040, 1105, 1220, 1360, 1544, 1586, 1768, 1930, 2074, 2210, 2440, 2509, 3088, 3172, 3281, 3536, 3860, 3965, 4148, 4420, 4880, 5018, 5185, 6344, 6562, 7720, 7930, 8296, 8840, 10036, 10370, 11773, 12545, 12688, 13124, 13481, 15440, 15860, 16405, 16592, 17680, 20072, 20740, 23546, 25090, 26248, 26962, 31720, 32810, 40144, 41480, 42653, 47092, 50180, 52496, 53924, 58865, 63440, 65620, 67405, 82960, 85306, 94184, 100360, 107848, 117730, 131240, 134810, 153049, 170612, 188368, 200141, 200720, 213265, 215696, 235460, 262480, 269620, 306098, 341224, 400282, 426530, 470920, 539240, 612196, 682448, 765245, 800564, 853060, 941840, 1000705, 1078480, 1224392, 1530490, 1601128, 1706120, 2001410, 2448784, 2601833, 3060980, 3202256, 3412240, 4002820, 5203666, 6121960, 8005640, 10407332, 12243920, 13009165, 16011280, 20814664, 26018330, 41629328, 52036660, 104073320, 208146640]

約数ペア:

[(1, 208146640), (2, 104073320), (4, 52036660), (5, 41629328), (8, 26018330), (10, 20814664), (13, 16011280), (16, 13009165), (17, 12243920), (20, 10407332), (26, 8005640), (34, 6121960), (40, 5203666), (52, 4002820), (61, 3412240), (65, 3202256), (68, 3060980), (80, 2601833), (85, 2448784), (104, 2001410), (122, 1706120), (130, 1601128), (136, 1530490), (170, 1224392), (193, 1078480), (208, 1000705), (221, 941840), (244, 853060), (260, 800564), (272, 765245), (305, 682448), (340, 612196), (386, 539240), (442, 470920), (488, 426530), (520, 400282), (610, 341224), (680, 306098), (772, 269620), (793, 262480), (884, 235460), (965, 215696), (976, 213265), (1037, 200720), (1040, 200141), (1105, 188368), (1220, 170612), (1360, 153049), (1544, 134810), (1586, 131240), (1768, 117730), (1930, 107848), (2074, 100360), (2210, 94184), (2440, 85306), (2509, 82960), (3088, 67405), (3172, 65620), (3281, 63440), (3536, 58865), (3860, 53924), (3965, 52496), (4148, 50180), (4420, 47092), (4880, 42653), (5018, 41480), (5185, 40144), (6344, 32810), (6562, 31720), (7720, 26962), (7930, 26248), (8296, 25090), (8840, 23546), (10036, 20740), (10370, 20072), (11773, 17680), (12545, 16592), (12688, 16405), (13124, 15860), (13481, 15440)]