201991815

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{4993}}^1$

素因数の和:5064

約数の個数: 48

約数和(自身を含む): 373950720

約数和(自身を除く): 171958905

約数列:

[1, 3, 5, 9, 15, 29, 31, 45, 87, 93, 145, 155, 261, 279, 435, 465, 899, 1305, 1395, 2697, 4495, 4993, 8091, 13485, 14979, 24965, 40455, 44937, 74895, 144797, 154783, 224685, 434391, 464349, 723985, 773915, 1303173, 1393047, 2171955, 2321745, 4488707, 6515865, 6965235, 13466121, 22443535, 40398363, 67330605, 201991815]

約数ペア:

[(1, 201991815), (3, 67330605), (5, 40398363), (9, 22443535), (15, 13466121), (29, 6965235), (31, 6515865), (45, 4488707), (87, 2321745), (93, 2171955), (145, 1393047), (155, 1303173), (261, 773915), (279, 723985), (435, 464349), (465, 434391), (899, 224685), (1305, 154783), (1395, 144797), (2697, 74895), (4495, 44937), (4993, 40455), (8091, 24965), (13485, 14979)]