20179504

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{383}}^1$

素因数の和:517

約数の個数: 40

約数和(自身を含む): 40711680

約数和(自身を除く): 20532176

約数列:

[1, 2, 4, 8, 16, 37, 74, 89, 148, 178, 296, 356, 383, 592, 712, 766, 1424, 1532, 3064, 3293, 6128, 6586, 13172, 14171, 26344, 28342, 34087, 52688, 56684, 68174, 113368, 136348, 226736, 272696, 545392, 1261219, 2522438, 5044876, 10089752, 20179504]

約数ペア:

[(1, 20179504), (2, 10089752), (4, 5044876), (8, 2522438), (16, 1261219), (37, 545392), (74, 272696), (89, 226736), (148, 136348), (178, 113368), (296, 68174), (356, 56684), (383, 52688), (592, 34087), (712, 28342), (766, 26344), (1424, 14171), (1532, 13172), (3064, 6586), (3293, 6128)]