19198455

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:152

約数の個数: 64

約数和(自身を含む): 34836480

約数和(自身を除く): 15638025

約数列:

[1, 3, 5, 15, 19, 31, 41, 53, 57, 93, 95, 123, 155, 159, 205, 265, 285, 465, 589, 615, 779, 795, 1007, 1271, 1643, 1767, 2173, 2337, 2945, 3021, 3813, 3895, 4929, 5035, 6355, 6519, 8215, 8835, 10865, 11685, 15105, 19065, 24149, 24645, 31217, 32595, 41287, 67363, 72447, 93651, 120745, 123861, 156085, 202089, 206435, 336815, 362235, 468255, 619305, 1010445, 1279897, 3839691, 6399485, 19198455]

約数ペア:

[(1, 19198455), (3, 6399485), (5, 3839691), (15, 1279897), (19, 1010445), (31, 619305), (41, 468255), (53, 362235), (57, 336815), (93, 206435), (95, 202089), (123, 156085), (155, 123861), (159, 120745), (205, 93651), (265, 72447), (285, 67363), (465, 41287), (589, 32595), (615, 31217), (779, 24645), (795, 24149), (1007, 19065), (1271, 15105), (1643, 11685), (1767, 10865), (2173, 8835), (2337, 8215), (2945, 6519), (3021, 6355), (3813, 5035), (3895, 4929)]