129548840

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{271}}^1$

素因数の和:355

約数の個数: 128

約数和(自身を含む): 334886400

約数和(自身を除く): 205337560

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 34, 37, 38, 40, 68, 74, 76, 85, 95, 136, 148, 152, 170, 185, 190, 271, 296, 323, 340, 370, 380, 542, 629, 646, 680, 703, 740, 760, 1084, 1258, 1292, 1355, 1406, 1480, 1615, 2168, 2516, 2584, 2710, 2812, 3145, 3230, 3515, 4607, 5032, 5149, 5420, 5624, 6290, 6460, 7030, 9214, 10027, 10298, 10840, 11951, 12580, 12920, 14060, 18428, 20054, 20596, 23035, 23902, 25160, 25745, 28120, 36856, 40108, 41192, 46070, 47804, 50135, 51490, 59755, 80216, 87533, 92140, 95608, 100270, 102980, 119510, 170459, 175066, 184280, 190513, 200540, 205960, 239020, 340918, 350132, 381026, 401080, 437665, 478040, 681836, 700264, 762052, 852295, 875330, 952565, 1363672, 1524104, 1704590, 1750660, 1905130, 3238721, 3409180, 3501320, 3810260, 6477442, 6818360, 7620520, 12954884, 16193605, 25909768, 32387210, 64774420, 129548840]

約数ペア:

[(1, 129548840), (2, 64774420), (4, 32387210), (5, 25909768), (8, 16193605), (10, 12954884), (17, 7620520), (19, 6818360), (20, 6477442), (34, 3810260), (37, 3501320), (38, 3409180), (40, 3238721), (68, 1905130), (74, 1750660), (76, 1704590), (85, 1524104), (95, 1363672), (136, 952565), (148, 875330), (152, 852295), (170, 762052), (185, 700264), (190, 681836), (271, 478040), (296, 437665), (323, 401080), (340, 381026), (370, 350132), (380, 340918), (542, 239020), (629, 205960), (646, 200540), (680, 190513), (703, 184280), (740, 175066), (760, 170459), (1084, 119510), (1258, 102980), (1292, 100270), (1355, 95608), (1406, 92140), (1480, 87533), (1615, 80216), (2168, 59755), (2516, 51490), (2584, 50135), (2710, 47804), (2812, 46070), (3145, 41192), (3230, 40108), (3515, 36856), (4607, 28120), (5032, 25745), (5149, 25160), (5420, 23902), (5624, 23035), (6290, 20596), (6460, 20054), (7030, 18428), (9214, 14060), (10027, 12920), (10298, 12580), (10840, 11951)]