20552017825

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1\times {\mathrm{167}}^1$

素因数の和:403

約数の個数: 96

約数和(自身を含む): 28456178688

約数和(自身を除く): 7904160863

約数列:

[1, 5, 17, 25, 47, 61, 85, 101, 167, 235, 305, 425, 505, 799, 835, 1037, 1175, 1525, 1717, 2525, 2839, 2867, 3995, 4175, 4747, 5185, 6161, 7849, 8585, 10187, 14195, 14335, 16867, 19975, 23735, 25925, 30805, 39245, 42925, 48739, 50935, 70975, 71675, 80699, 84335, 104737, 118675, 133433, 154025, 173179, 196225, 243695, 254675, 286739, 289567, 403495, 421675, 478789, 523685, 667165, 792749, 865895, 1028887, 1218475, 1433695, 1447835, 2017475, 2393945, 2618425, 3335825, 3963745, 4329475, 4922639, 5144435, 7168475, 7239175, 8139413, 11969725, 13476733, 17491079, 19818725, 24613195, 25722175, 40697065, 48357689, 67383665, 87455395, 123065975, 203485325, 241788445, 336918325, 437276975, 822080713, 1208942225, 4110403565, 20552017825]

約数ペア:

[(1, 20552017825), (5, 4110403565), (17, 1208942225), (25, 822080713), (47, 437276975), (61, 336918325), (85, 241788445), (101, 203485325), (167, 123065975), (235, 87455395), (305, 67383665), (425, 48357689), (505, 40697065), (799, 25722175), (835, 24613195), (1037, 19818725), (1175, 17491079), (1525, 13476733), (1717, 11969725), (2525, 8139413), (2839, 7239175), (2867, 7168475), (3995, 5144435), (4175, 4922639), (4747, 4329475), (5185, 3963745), (6161, 3335825), (7849, 2618425), (8585, 2393945), (10187, 2017475), (14195, 1447835), (14335, 1433695), (16867, 1218475), (19975, 1028887), (23735, 865895), (25925, 792749), (30805, 667165), (39245, 523685), (42925, 478789), (48739, 421675), (50935, 403495), (70975, 289567), (71675, 286739), (80699, 254675), (84335, 243695), (104737, 196225), (118675, 173179), (133433, 154025)]