2021030620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{203323}}^1$

素因数の和:203410

約数の個数: 48

約数和(自身を含む): 4918814208

約数和(自身を除く): 2897783588

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 9940, 203323, 406646, 813292, 1016615, 1423261, 2033230, 2846522, 4066460, 5693044, 7116305, 14232610, 14435933, 28465220, 28871866, 57743732, 72179665, 101051531, 144359330, 202103062, 288718660, 404206124, 505257655, 1010515310, 2021030620]

約数ペア:

[(1, 2021030620), (2, 1010515310), (4, 505257655), (5, 404206124), (7, 288718660), (10, 202103062), (14, 144359330), (20, 101051531), (28, 72179665), (35, 57743732), (70, 28871866), (71, 28465220), (140, 14435933), (142, 14232610), (284, 7116305), (355, 5693044), (497, 4066460), (710, 2846522), (994, 2033230), (1420, 1423261), (1988, 1016615), (2485, 813292), (4970, 406646), (9940, 203323)]