66224540

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1\times {\mathrm{313}}^1$

素因数の和:542

約数の個数: 48

約数和(自身を含む): 142430400

約数和(自身を除く): 76205860

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 149, 284, 298, 313, 355, 596, 626, 710, 745, 1252, 1420, 1490, 1565, 2980, 3130, 6260, 10579, 21158, 22223, 42316, 44446, 46637, 52895, 88892, 93274, 105790, 111115, 186548, 211580, 222230, 233185, 444460, 466370, 932740, 3311227, 6622454, 13244908, 16556135, 33112270, 66224540]

約数ペア:

[(1, 66224540), (2, 33112270), (4, 16556135), (5, 13244908), (10, 6622454), (20, 3311227), (71, 932740), (142, 466370), (149, 444460), (284, 233185), (298, 222230), (313, 211580), (355, 186548), (596, 111115), (626, 105790), (710, 93274), (745, 88892), (1252, 52895), (1420, 46637), (1490, 44446), (1565, 42316), (2980, 22223), (3130, 21158), (6260, 10579)]