168390860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{149}}^1\times {\mathrm{467}}^1$

素因数の和:647

約数の個数: 72

約数和(自身を含む): 392137200

約数和(自身を除く): 223746340

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 149, 220, 242, 298, 467, 484, 596, 605, 745, 934, 1210, 1490, 1639, 1868, 2335, 2420, 2980, 3278, 4670, 5137, 6556, 8195, 9340, 10274, 16390, 18029, 20548, 25685, 32780, 36058, 51370, 56507, 69583, 72116, 90145, 102740, 113014, 139166, 180290, 226028, 278332, 282535, 347915, 360580, 565070, 695830, 765413, 1130140, 1391660, 1530826, 3061652, 3827065, 7654130, 8419543, 15308260, 16839086, 33678172, 42097715, 84195430, 168390860]

約数ペア:

[(1, 168390860), (2, 84195430), (4, 42097715), (5, 33678172), (10, 16839086), (11, 15308260), (20, 8419543), (22, 7654130), (44, 3827065), (55, 3061652), (110, 1530826), (121, 1391660), (149, 1130140), (220, 765413), (242, 695830), (298, 565070), (467, 360580), (484, 347915), (596, 282535), (605, 278332), (745, 226028), (934, 180290), (1210, 139166), (1490, 113014), (1639, 102740), (1868, 90145), (2335, 72116), (2420, 69583), (2980, 56507), (3278, 51370), (4670, 36058), (5137, 32780), (6556, 25685), (8195, 20548), (9340, 18029), (10274, 16390)]