20201890720

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{113647}}^1$

素因数の和:113774

約数の個数: 96

約数和(自身を含む): 52581747456

約数和(自身を除く): 32379856736

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 101, 110, 160, 176, 202, 220, 352, 404, 440, 505, 808, 880, 1010, 1111, 1616, 1760, 2020, 2222, 3232, 4040, 4444, 5555, 8080, 8888, 11110, 16160, 17776, 22220, 35552, 44440, 88880, 113647, 177760, 227294, 454588, 568235, 909176, 1136470, 1250117, 1818352, 2272940, 2500234, 3636704, 4545880, 5000468, 6250585, 9091760, 10000936, 11478347, 12501170, 18183520, 20001872, 22956694, 25002340, 40003744, 45913388, 50004680, 57391735, 91826776, 100009360, 114783470, 126261817, 183653552, 200018720, 229566940, 252523634, 367307104, 459133880, 505047268, 631309085, 918267760, 1010094536, 1262618170, 1836535520, 2020189072, 2525236340, 4040378144, 5050472680, 10100945360, 20201890720]

約数ペア:

[(1, 20201890720), (2, 10100945360), (4, 5050472680), (5, 4040378144), (8, 2525236340), (10, 2020189072), (11, 1836535520), (16, 1262618170), (20, 1010094536), (22, 918267760), (32, 631309085), (40, 505047268), (44, 459133880), (55, 367307104), (80, 252523634), (88, 229566940), (101, 200018720), (110, 183653552), (160, 126261817), (176, 114783470), (202, 100009360), (220, 91826776), (352, 57391735), (404, 50004680), (440, 45913388), (505, 40003744), (808, 25002340), (880, 22956694), (1010, 20001872), (1111, 18183520), (1616, 12501170), (1760, 11478347), (2020, 10000936), (2222, 9091760), (3232, 6250585), (4040, 5000468), (4444, 4545880), (5555, 3636704), (8080, 2500234), (8888, 2272940), (11110, 1818352), (16160, 1250117), (17776, 1136470), (22220, 909176), (35552, 568235), (44440, 454588), (88880, 227294), (113647, 177760)]