28914940

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{313}}^1$

素因数の和:502

約数の個数: 48

約数和(自身を含む): 63302400

約数和(自身を除く): 34387460

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 149, 155, 298, 310, 313, 596, 620, 626, 745, 1252, 1490, 1565, 2980, 3130, 4619, 6260, 9238, 9703, 18476, 19406, 23095, 38812, 46190, 46637, 48515, 92380, 93274, 97030, 186548, 194060, 233185, 466370, 932740, 1445747, 2891494, 5782988, 7228735, 14457470, 28914940]

約数ペア:

[(1, 28914940), (2, 14457470), (4, 7228735), (5, 5782988), (10, 2891494), (20, 1445747), (31, 932740), (62, 466370), (124, 233185), (149, 194060), (155, 186548), (298, 97030), (310, 93274), (313, 92380), (596, 48515), (620, 46637), (626, 46190), (745, 38812), (1252, 23095), (1490, 19406), (1565, 18476), (2980, 9703), (3130, 9238), (4619, 6260)]