20029485

素因数分解:

$3^1\times 5^1\times 7^3\times {\mathrm{17}}^1\times {\mathrm{229}}^1$

素因数の和:275

約数の個数: 64

約数和(自身を含む): 39744000

約数和(自身を除く): 19714515

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 49, 51, 85, 105, 119, 147, 229, 245, 255, 343, 357, 595, 687, 735, 833, 1029, 1145, 1603, 1715, 1785, 2499, 3435, 3893, 4165, 4809, 5145, 5831, 8015, 11221, 11679, 12495, 17493, 19465, 24045, 27251, 29155, 33663, 56105, 58395, 78547, 81753, 87465, 136255, 168315, 190757, 235641, 392735, 408765, 572271, 953785, 1178205, 1335299, 2861355, 4005897, 6676495, 20029485]

約数ペア:

[(1, 20029485), (3, 6676495), (5, 4005897), (7, 2861355), (15, 1335299), (17, 1178205), (21, 953785), (35, 572271), (49, 408765), (51, 392735), (85, 235641), (105, 190757), (119, 168315), (147, 136255), (229, 87465), (245, 81753), (255, 78547), (343, 58395), (357, 56105), (595, 33663), (687, 29155), (735, 27251), (833, 24045), (1029, 19465), (1145, 17493), (1603, 12495), (1715, 11679), (1785, 11221), (2499, 8015), (3435, 5831), (3893, 5145), (4165, 4809)]