72071727

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1$

素因数の和:248

約数の個数: 64

約数和(自身を含む): 124637184

約数和(自身を除く): 52565457

約数列:

[1, 3, 7, 13, 21, 39, 41, 47, 91, 123, 137, 141, 273, 287, 329, 411, 533, 611, 861, 959, 987, 1599, 1781, 1833, 1927, 2877, 3731, 4277, 5343, 5617, 5781, 6439, 11193, 12467, 12831, 13489, 16851, 19317, 25051, 37401, 39319, 40467, 45073, 73021, 75153, 83707, 117957, 135219, 175357, 219063, 251121, 263999, 511147, 526071, 585949, 791997, 1533441, 1757847, 1847993, 3431987, 5543979, 10295961, 24023909, 72071727]

約数ペア:

[(1, 72071727), (3, 24023909), (7, 10295961), (13, 5543979), (21, 3431987), (39, 1847993), (41, 1757847), (47, 1533441), (91, 791997), (123, 585949), (137, 526071), (141, 511147), (273, 263999), (287, 251121), (329, 219063), (411, 175357), (533, 135219), (611, 117957), (861, 83707), (959, 75153), (987, 73021), (1599, 45073), (1781, 40467), (1833, 39319), (1927, 37401), (2877, 25051), (3731, 19317), (4277, 16851), (5343, 13489), (5617, 12831), (5781, 12467), (6439, 11193)]