20346750980

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{157}}^1\times {\mathrm{64157}}^1$

素因数の和:64424

約数の個数: 48

約数和(自身を含む): 43426753776

約数和(自身を除く): 23080002796

約数列:

[1, 2, 4, 5, 10, 20, 101, 157, 202, 314, 404, 505, 628, 785, 1010, 1570, 2020, 3140, 15857, 31714, 63428, 64157, 79285, 128314, 158570, 256628, 317140, 320785, 641570, 1283140, 6479857, 10072649, 12959714, 20145298, 25919428, 32399285, 40290596, 50363245, 64798570, 100726490, 129597140, 201452980, 1017337549, 2034675098, 4069350196, 5086687745, 10173375490, 20346750980]

約数ペア:

[(1, 20346750980), (2, 10173375490), (4, 5086687745), (5, 4069350196), (10, 2034675098), (20, 1017337549), (101, 201452980), (157, 129597140), (202, 100726490), (314, 64798570), (404, 50363245), (505, 40290596), (628, 32399285), (785, 25919428), (1010, 20145298), (1570, 12959714), (2020, 10072649), (3140, 6479857), (15857, 1283140), (31714, 641570), (63428, 320785), (64157, 317140), (79285, 256628), (128314, 158570)]