2012256440

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1\times {\mathrm{4513}}^1$

素因数の和:4752

約数の個数: 64

約数和(自身を含む): 4621613760

約数和(自身を除く): 2609357320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 157, 284, 314, 355, 568, 628, 710, 785, 1256, 1420, 1570, 2840, 3140, 4513, 6280, 9026, 11147, 18052, 22294, 22565, 36104, 44588, 45130, 55735, 89176, 90260, 111470, 180520, 222940, 320423, 445880, 640846, 708541, 1281692, 1417082, 1602115, 2563384, 2834164, 3204230, 3542705, 5668328, 6408460, 7085410, 12816920, 14170820, 28341640, 50306411, 100612822, 201225644, 251532055, 402451288, 503064110, 1006128220, 2012256440]

約数ペア:

[(1, 2012256440), (2, 1006128220), (4, 503064110), (5, 402451288), (8, 251532055), (10, 201225644), (20, 100612822), (40, 50306411), (71, 28341640), (142, 14170820), (157, 12816920), (284, 7085410), (314, 6408460), (355, 5668328), (568, 3542705), (628, 3204230), (710, 2834164), (785, 2563384), (1256, 1602115), (1420, 1417082), (1570, 1281692), (2840, 708541), (3140, 640846), (4513, 445880), (6280, 320423), (9026, 222940), (11147, 180520), (18052, 111470), (22294, 90260), (22565, 89176), (36104, 55735), (44588, 45130)]