138561320

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{853}}^1$

素因数の和:1026

約数の個数: 64

約数和(自身を含む): 324656640

約数和(自身を除く): 186095320

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 131, 155, 248, 262, 310, 524, 620, 655, 853, 1048, 1240, 1310, 1706, 2620, 3412, 4061, 4265, 5240, 6824, 8122, 8530, 16244, 17060, 20305, 26443, 32488, 34120, 40610, 52886, 81220, 105772, 111743, 132215, 162440, 211544, 223486, 264430, 446972, 528860, 558715, 893944, 1057720, 1117430, 2234860, 3464033, 4469720, 6928066, 13856132, 17320165, 27712264, 34640330, 69280660, 138561320]

約数ペア:

[(1, 138561320), (2, 69280660), (4, 34640330), (5, 27712264), (8, 17320165), (10, 13856132), (20, 6928066), (31, 4469720), (40, 3464033), (62, 2234860), (124, 1117430), (131, 1057720), (155, 893944), (248, 558715), (262, 528860), (310, 446972), (524, 264430), (620, 223486), (655, 211544), (853, 162440), (1048, 132215), (1240, 111743), (1310, 105772), (1706, 81220), (2620, 52886), (3412, 40610), (4061, 34120), (4265, 32488), (5240, 26443), (6824, 20305), (8122, 17060), (8530, 16244)]