18835935

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:152

約数の個数: 64

約数和(自身を含む): 34214400

約数和(自身を除く): 15378465

約数列:

[1, 3, 5, 15, 19, 29, 43, 53, 57, 87, 95, 129, 145, 159, 215, 265, 285, 435, 551, 645, 795, 817, 1007, 1247, 1537, 1653, 2279, 2451, 2755, 3021, 3741, 4085, 4611, 5035, 6235, 6837, 7685, 8265, 11395, 12255, 15105, 18705, 23055, 23693, 29203, 34185, 43301, 66091, 71079, 87609, 118465, 129903, 146015, 198273, 216505, 330455, 355395, 438045, 649515, 991365, 1255729, 3767187, 6278645, 18835935]

約数ペア:

[(1, 18835935), (3, 6278645), (5, 3767187), (15, 1255729), (19, 991365), (29, 649515), (43, 438045), (53, 355395), (57, 330455), (87, 216505), (95, 198273), (129, 146015), (145, 129903), (159, 118465), (215, 87609), (265, 71079), (285, 66091), (435, 43301), (551, 34185), (645, 29203), (795, 23693), (817, 23055), (1007, 18705), (1247, 15105), (1537, 12255), (1653, 11395), (2279, 8265), (2451, 7685), (2755, 6837), (3021, 6235), (3741, 5035), (4085, 4611)]