20649072

素因数分解:

$2^4\times 3^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{83}}^1$

素因数の和:238

約数の個数: 80

約数和(自身を含む): 55496448

約数和(自身を除く): 34847376

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 71, 73, 83, 142, 146, 166, 213, 219, 249, 284, 292, 332, 426, 438, 498, 568, 584, 664, 852, 876, 996, 1136, 1168, 1328, 1704, 1752, 1992, 3408, 3504, 3984, 5183, 5893, 6059, 10366, 11786, 12118, 15549, 17679, 18177, 20732, 23572, 24236, 31098, 35358, 36354, 41464, 47144, 48472, 62196, 70716, 72708, 82928, 94288, 96944, 124392, 141432, 145416, 248784, 282864, 290832, 430189, 860378, 1290567, 1720756, 2581134, 3441512, 5162268, 6883024, 10324536, 20649072]

約数ペア:

[(1, 20649072), (2, 10324536), (3, 6883024), (4, 5162268), (6, 3441512), (8, 2581134), (12, 1720756), (16, 1290567), (24, 860378), (48, 430189), (71, 290832), (73, 282864), (83, 248784), (142, 145416), (146, 141432), (166, 124392), (213, 96944), (219, 94288), (249, 82928), (284, 72708), (292, 70716), (332, 62196), (426, 48472), (438, 47144), (498, 41464), (568, 36354), (584, 35358), (664, 31098), (852, 24236), (876, 23572), (996, 20732), (1136, 18177), (1168, 17679), (1328, 15549), (1704, 12118), (1752, 11786), (1992, 10366), (3408, 6059), (3504, 5893), (3984, 5183)]