219792015

素因数分解:

$3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1811}}^1$

素因数の和:1885

約数の個数: 64

約数和(自身を含む): 417484800

約数和(自身を除く): 197692785

約数列:

[1, 3, 5, 9, 15, 27, 29, 31, 45, 87, 93, 135, 145, 155, 261, 279, 435, 465, 783, 837, 899, 1305, 1395, 1811, 2697, 3915, 4185, 4495, 5433, 8091, 9055, 13485, 16299, 24273, 27165, 40455, 48897, 52519, 56141, 81495, 121365, 157557, 168423, 244485, 262595, 280705, 472671, 505269, 787785, 842115, 1418013, 1515807, 1628089, 2363355, 2526345, 4884267, 7090065, 7579035, 8140445, 14652801, 24421335, 43958403, 73264005, 219792015]

約数ペア:

[(1, 219792015), (3, 73264005), (5, 43958403), (9, 24421335), (15, 14652801), (27, 8140445), (29, 7579035), (31, 7090065), (45, 4884267), (87, 2526345), (93, 2363355), (135, 1628089), (145, 1515807), (155, 1418013), (261, 842115), (279, 787785), (435, 505269), (465, 472671), (783, 280705), (837, 262595), (899, 244485), (1305, 168423), (1395, 157557), (1811, 121365), (2697, 81495), (3915, 56141), (4185, 52519), (4495, 48897), (5433, 40455), (8091, 27165), (9055, 24273), (13485, 16299)]