20102711680

素因数分解:

$2^7\times 5^1\times {\mathrm{683}}^1\times {\mathrm{45989}}^1$

素因数の和:46691

約数の個数: 64

約数和(自身を含む): 48129454800

約数和(自身を除く): 28026743120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 683, 1366, 2732, 3415, 5464, 6830, 10928, 13660, 21856, 27320, 43712, 45989, 54640, 87424, 91978, 109280, 183956, 218560, 229945, 367912, 437120, 459890, 735824, 919780, 1471648, 1839560, 2943296, 3679120, 5886592, 7358240, 14716480, 29432960, 31410487, 62820974, 125641948, 157052435, 251283896, 314104870, 502567792, 628209740, 1005135584, 1256419480, 2010271168, 2512838960, 4020542336, 5025677920, 10051355840, 20102711680]

約数ペア:

[(1, 20102711680), (2, 10051355840), (4, 5025677920), (5, 4020542336), (8, 2512838960), (10, 2010271168), (16, 1256419480), (20, 1005135584), (32, 628209740), (40, 502567792), (64, 314104870), (80, 251283896), (128, 157052435), (160, 125641948), (320, 62820974), (640, 31410487), (683, 29432960), (1366, 14716480), (2732, 7358240), (3415, 5886592), (5464, 3679120), (6830, 2943296), (10928, 1839560), (13660, 1471648), (21856, 919780), (27320, 735824), (43712, 459890), (45989, 437120), (54640, 367912), (87424, 229945), (91978, 218560), (109280, 183956)]