16390720

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1$

素因数の和:188

約数の個数: 112

約数和(自身を含む): 43452288

約数和(自身を除く): 27061568

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 23, 32, 34, 40, 46, 64, 68, 80, 85, 92, 115, 131, 136, 160, 170, 184, 230, 262, 272, 320, 340, 368, 391, 460, 524, 544, 655, 680, 736, 782, 920, 1048, 1088, 1310, 1360, 1472, 1564, 1840, 1955, 2096, 2227, 2620, 2720, 3013, 3128, 3680, 3910, 4192, 4454, 5240, 5440, 6026, 6256, 7360, 7820, 8384, 8908, 10480, 11135, 12052, 12512, 15065, 15640, 17816, 20960, 22270, 24104, 25024, 30130, 31280, 35632, 41920, 44540, 48208, 51221, 60260, 62560, 71264, 89080, 96416, 102442, 120520, 125120, 142528, 178160, 192832, 204884, 241040, 256105, 356320, 409768, 482080, 512210, 712640, 819536, 964160, 1024420, 1639072, 2048840, 3278144, 4097680, 8195360, 16390720]

約数ペア:

[(1, 16390720), (2, 8195360), (4, 4097680), (5, 3278144), (8, 2048840), (10, 1639072), (16, 1024420), (17, 964160), (20, 819536), (23, 712640), (32, 512210), (34, 482080), (40, 409768), (46, 356320), (64, 256105), (68, 241040), (80, 204884), (85, 192832), (92, 178160), (115, 142528), (131, 125120), (136, 120520), (160, 102442), (170, 96416), (184, 89080), (230, 71264), (262, 62560), (272, 60260), (320, 51221), (340, 48208), (368, 44540), (391, 41920), (460, 35632), (524, 31280), (544, 30130), (655, 25024), (680, 24104), (736, 22270), (782, 20960), (920, 17816), (1048, 15640), (1088, 15065), (1310, 12512), (1360, 12052), (1472, 11135), (1564, 10480), (1840, 8908), (1955, 8384), (2096, 7820), (2227, 7360), (2620, 6256), (2720, 6026), (3013, 5440), (3128, 5240), (3680, 4454), (3910, 4192)]