20412512

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{239}}^1$

素因数の和:423

約数の個数: 48

約数和(自身を含む): 43001280

約数和(自身を除く): 22588768

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 136, 157, 239, 272, 314, 478, 544, 628, 956, 1256, 1912, 2512, 2669, 3824, 4063, 5024, 5338, 7648, 8126, 10676, 16252, 21352, 32504, 37523, 42704, 65008, 75046, 85408, 130016, 150092, 300184, 600368, 637891, 1200736, 1275782, 2551564, 5103128, 10206256, 20412512]

約数ペア:

[(1, 20412512), (2, 10206256), (4, 5103128), (8, 2551564), (16, 1275782), (17, 1200736), (32, 637891), (34, 600368), (68, 300184), (136, 150092), (157, 130016), (239, 85408), (272, 75046), (314, 65008), (478, 42704), (544, 37523), (628, 32504), (956, 21352), (1256, 16252), (1912, 10676), (2512, 8126), (2669, 7648), (3824, 5338), (4063, 5024)]