400639996640

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{337}}^1\times {\mathrm{5659}}^1$

素因数の和:6125

約数の個数: 192

約数和(自身を含む): 1032649974720

約数和(自身を除く): 632009978080

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 101, 104, 130, 160, 202, 208, 260, 337, 404, 416, 505, 520, 674, 808, 1010, 1040, 1313, 1348, 1616, 1685, 2020, 2080, 2626, 2696, 3232, 3370, 4040, 4381, 5252, 5392, 5659, 6565, 6740, 8080, 8762, 10504, 10784, 11318, 13130, 13480, 16160, 17524, 21008, 21905, 22636, 26260, 26960, 28295, 34037, 35048, 42016, 43810, 45272, 52520, 53920, 56590, 68074, 70096, 73567, 87620, 90544, 105040, 113180, 136148, 140192, 147134, 170185, 175240, 181088, 210080, 226360, 272296, 294268, 340370, 350480, 367835, 442481, 452720, 544592, 571559, 588536, 680740, 700960, 735670, 884962, 905440, 1089184, 1143118, 1177072, 1361480, 1471340, 1769924, 1907083, 2212405, 2286236, 2354144, 2722960, 2857795, 2942680, 3539848, 3814166, 4424810, 4572472, 5445920, 5715590, 5885360, 7079696, 7430267, 7628332, 8849620, 9144944, 9535415, 11431180, 11770720, 14159392, 14860534, 15256664, 17699240, 18289888, 19070830, 22862360, 24792079, 29721068, 30513328, 35398480, 37151335, 38141660, 45724720, 49584158, 59442136, 61026656, 70796960, 74302670, 76283320, 91449440, 99168316, 118884272, 123960395, 148605340, 152566640, 192615383, 198336632, 237768544, 247920790, 297210680, 305133280, 385230766, 396673264, 495841580, 594421360, 770461532, 793346528, 963076915, 991683160, 1188842720, 1540923064, 1926153830, 1983366320, 2503999979, 3081846128, 3852307660, 3966732640, 5007999958, 6163692256, 7704615320, 10015999916, 12519999895, 15409230640, 20031999832, 25039999790, 30818461280, 40063999664, 50079999580, 80127999328, 100159999160, 200319998320, 400639996640]

約数ペア:

[(1, 400639996640), (2, 200319998320), (4, 100159999160), (5, 80127999328), (8, 50079999580), (10, 40063999664), (13, 30818461280), (16, 25039999790), (20, 20031999832), (26, 15409230640), (32, 12519999895), (40, 10015999916), (52, 7704615320), (65, 6163692256), (80, 5007999958), (101, 3966732640), (104, 3852307660), (130, 3081846128), (160, 2503999979), (202, 1983366320), (208, 1926153830), (260, 1540923064), (337, 1188842720), (404, 991683160), (416, 963076915), (505, 793346528), (520, 770461532), (674, 594421360), (808, 495841580), (1010, 396673264), (1040, 385230766), (1313, 305133280), (1348, 297210680), (1616, 247920790), (1685, 237768544), (2020, 198336632), (2080, 192615383), (2626, 152566640), (2696, 148605340), (3232, 123960395), (3370, 118884272), (4040, 99168316), (4381, 91449440), (5252, 76283320), (5392, 74302670), (5659, 70796960), (6565, 61026656), (6740, 59442136), (8080, 49584158), (8762, 45724720), (10504, 38141660), (10784, 37151335), (11318, 35398480), (13130, 30513328), (13480, 29721068), (16160, 24792079), (17524, 22862360), (21008, 19070830), (21905, 18289888), (22636, 17699240), (26260, 15256664), (26960, 14860534), (28295, 14159392), (34037, 11770720), (35048, 11431180), (42016, 9535415), (43810, 9144944), (45272, 8849620), (52520, 7628332), (53920, 7430267), (56590, 7079696), (68074, 5885360), (70096, 5715590), (73567, 5445920), (87620, 4572472), (90544, 4424810), (105040, 3814166), (113180, 3539848), (136148, 2942680), (140192, 2857795), (147134, 2722960), (170185, 2354144), (175240, 2286236), (181088, 2212405), (210080, 1907083), (226360, 1769924), (272296, 1471340), (294268, 1361480), (340370, 1177072), (350480, 1143118), (367835, 1089184), (442481, 905440), (452720, 884962), (544592, 735670), (571559, 700960), (588536, 680740)]