20554170

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7529}}^1$

素因数の和:7559

約数の個数: 64

約数和(自身を含む): 60721920

約数和(自身を除く): 40167750

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 30, 35, 39, 42, 65, 70, 78, 91, 105, 130, 182, 195, 210, 273, 390, 455, 546, 910, 1365, 2730, 7529, 15058, 22587, 37645, 45174, 52703, 75290, 97877, 105406, 112935, 158109, 195754, 225870, 263515, 293631, 316218, 489385, 527030, 587262, 685139, 790545, 978770, 1370278, 1468155, 1581090, 2055417, 2936310, 3425695, 4110834, 6851390, 10277085, 20554170]

約数ペア:

[(1, 20554170), (2, 10277085), (3, 6851390), (5, 4110834), (6, 3425695), (7, 2936310), (10, 2055417), (13, 1581090), (14, 1468155), (15, 1370278), (21, 978770), (26, 790545), (30, 685139), (35, 587262), (39, 527030), (42, 489385), (65, 316218), (70, 293631), (78, 263515), (91, 225870), (105, 195754), (130, 158109), (182, 112935), (195, 105406), (210, 97877), (273, 75290), (390, 52703), (455, 45174), (546, 37645), (910, 22587), (1365, 15058), (2730, 7529)]