208031720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{233}}^1$

素因数の和:375

約数の個数: 128

約数和(自身を含む): 541326240

約数和(自身を除く): 333294520

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 101, 104, 130, 136, 170, 202, 221, 233, 260, 340, 404, 442, 466, 505, 520, 680, 808, 884, 932, 1010, 1105, 1165, 1313, 1717, 1768, 1864, 2020, 2210, 2330, 2626, 3029, 3434, 3961, 4040, 4420, 4660, 5252, 6058, 6565, 6868, 7922, 8585, 8840, 9320, 10504, 12116, 13130, 13736, 15145, 15844, 17170, 19805, 22321, 23533, 24232, 26260, 30290, 31688, 34340, 39610, 44642, 47066, 51493, 52520, 60580, 68680, 79220, 89284, 94132, 102986, 111605, 117665, 121160, 158440, 178568, 188264, 205972, 223210, 235330, 257465, 305929, 400061, 411944, 446420, 470660, 514930, 611858, 800122, 892840, 941320, 1029860, 1223716, 1529645, 1600244, 2000305, 2059720, 2447432, 3059290, 3200488, 4000610, 5200793, 6118580, 8001220, 10401586, 12237160, 16002440, 20803172, 26003965, 41606344, 52007930, 104015860, 208031720]

約数ペア:

[(1, 208031720), (2, 104015860), (4, 52007930), (5, 41606344), (8, 26003965), (10, 20803172), (13, 16002440), (17, 12237160), (20, 10401586), (26, 8001220), (34, 6118580), (40, 5200793), (52, 4000610), (65, 3200488), (68, 3059290), (85, 2447432), (101, 2059720), (104, 2000305), (130, 1600244), (136, 1529645), (170, 1223716), (202, 1029860), (221, 941320), (233, 892840), (260, 800122), (340, 611858), (404, 514930), (442, 470660), (466, 446420), (505, 411944), (520, 400061), (680, 305929), (808, 257465), (884, 235330), (932, 223210), (1010, 205972), (1105, 188264), (1165, 178568), (1313, 158440), (1717, 121160), (1768, 117665), (1864, 111605), (2020, 102986), (2210, 94132), (2330, 89284), (2626, 79220), (3029, 68680), (3434, 60580), (3961, 52520), (4040, 51493), (4420, 47066), (4660, 44642), (5252, 39610), (6058, 34340), (6565, 31688), (6868, 30290), (7922, 26260), (8585, 24232), (8840, 23533), (9320, 22321), (10504, 19805), (12116, 17170), (13130, 15844), (13736, 15145)]