20588115

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:156

約数の個数: 64

約数和(自身を含む): 37324800

約数和(自身を除く): 16736685

約数列:

[1, 3, 5, 15, 19, 29, 47, 53, 57, 87, 95, 141, 145, 159, 235, 265, 285, 435, 551, 705, 795, 893, 1007, 1363, 1537, 1653, 2491, 2679, 2755, 3021, 4089, 4465, 4611, 5035, 6815, 7473, 7685, 8265, 12455, 13395, 15105, 20445, 23055, 25897, 29203, 37365, 47329, 72239, 77691, 87609, 129485, 141987, 146015, 216717, 236645, 361195, 388455, 438045, 709935, 1083585, 1372541, 4117623, 6862705, 20588115]

約数ペア:

[(1, 20588115), (3, 6862705), (5, 4117623), (15, 1372541), (19, 1083585), (29, 709935), (47, 438045), (53, 388455), (57, 361195), (87, 236645), (95, 216717), (141, 146015), (145, 141987), (159, 129485), (235, 87609), (265, 77691), (285, 72239), (435, 47329), (551, 37365), (705, 29203), (795, 25897), (893, 23055), (1007, 20445), (1363, 15105), (1537, 13395), (1653, 12455), (2491, 8265), (2679, 7685), (2755, 7473), (3021, 6815), (4089, 5035), (4465, 4611)]