21212640

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{14731}}^1$

素因数の和:14752

約数の個数: 72

約数和(自身を含む): 72393048

約数和(自身を除く): 51180408

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 14731, 29462, 44193, 58924, 73655, 88386, 117848, 132579, 147310, 176772, 220965, 235696, 265158, 294620, 353544, 441930, 471392, 530316, 589240, 662895, 707088, 883860, 1060632, 1178480, 1325790, 1414176, 1767720, 2121264, 2356960, 2651580, 3535440, 4242528, 5303160, 7070880, 10606320, 21212640]

約数ペア:

[(1, 21212640), (2, 10606320), (3, 7070880), (4, 5303160), (5, 4242528), (6, 3535440), (8, 2651580), (9, 2356960), (10, 2121264), (12, 1767720), (15, 1414176), (16, 1325790), (18, 1178480), (20, 1060632), (24, 883860), (30, 707088), (32, 662895), (36, 589240), (40, 530316), (45, 471392), (48, 441930), (60, 353544), (72, 294620), (80, 265158), (90, 235696), (96, 220965), (120, 176772), (144, 147310), (160, 132579), (180, 117848), (240, 88386), (288, 73655), (360, 58924), (480, 44193), (720, 29462), (1440, 14731)]