20722275

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{223}}^1$

素因数の和:305

約数の個数: 72

約数和(自身を含む): 43330560

約数和(自身を除く): 22608285

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 59, 63, 75, 105, 175, 177, 223, 225, 295, 315, 413, 525, 531, 669, 885, 1115, 1239, 1475, 1561, 1575, 2007, 2065, 2655, 3345, 3717, 4425, 4683, 5575, 6195, 7805, 10035, 10325, 13157, 13275, 14049, 16725, 18585, 23415, 30975, 39025, 39471, 50175, 65785, 70245, 92099, 92925, 117075, 118413, 197355, 276297, 328925, 351225, 460495, 592065, 828891, 986775, 1381485, 2302475, 2960325, 4144455, 6907425, 20722275]

約数ペア:

[(1, 20722275), (3, 6907425), (5, 4144455), (7, 2960325), (9, 2302475), (15, 1381485), (21, 986775), (25, 828891), (35, 592065), (45, 460495), (59, 351225), (63, 328925), (75, 276297), (105, 197355), (175, 118413), (177, 117075), (223, 92925), (225, 92099), (295, 70245), (315, 65785), (413, 50175), (525, 39471), (531, 39025), (669, 30975), (885, 23415), (1115, 18585), (1239, 16725), (1475, 14049), (1561, 13275), (1575, 13157), (2007, 10325), (2065, 10035), (2655, 7805), (3345, 6195), (3717, 5575), (4425, 4683)]