81883120

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^3\times {\mathrm{769}}^1$

素因数の和:815

約数の個数: 80

約数和(自身を含む): 209674080

約数和(自身を除く): 127790960

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 121, 176, 220, 242, 440, 484, 605, 769, 880, 968, 1210, 1331, 1538, 1936, 2420, 2662, 3076, 3845, 4840, 5324, 6152, 6655, 7690, 8459, 9680, 10648, 12304, 13310, 15380, 16918, 21296, 26620, 30760, 33836, 42295, 53240, 61520, 67672, 84590, 93049, 106480, 135344, 169180, 186098, 338360, 372196, 465245, 676720, 744392, 930490, 1023539, 1488784, 1860980, 2047078, 3721960, 4094156, 5117695, 7443920, 8188312, 10235390, 16376624, 20470780, 40941560, 81883120]

約数ペア:

[(1, 81883120), (2, 40941560), (4, 20470780), (5, 16376624), (8, 10235390), (10, 8188312), (11, 7443920), (16, 5117695), (20, 4094156), (22, 3721960), (40, 2047078), (44, 1860980), (55, 1488784), (80, 1023539), (88, 930490), (110, 744392), (121, 676720), (176, 465245), (220, 372196), (242, 338360), (440, 186098), (484, 169180), (605, 135344), (769, 106480), (880, 93049), (968, 84590), (1210, 67672), (1331, 61520), (1538, 53240), (1936, 42295), (2420, 33836), (2662, 30760), (3076, 26620), (3845, 21296), (4840, 16918), (5324, 15380), (6152, 13310), (6655, 12304), (7690, 10648), (8459, 9680)]