20228799320

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{77839}}^1$

素因数の和:78012

約数の個数: 64

約数和(自身を含む): 46657296000

約数和(自身を除く): 26428496680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 89, 146, 178, 292, 356, 365, 445, 584, 712, 730, 890, 1460, 1780, 2920, 3560, 6497, 12994, 25988, 32485, 51976, 64970, 77839, 129940, 155678, 259880, 311356, 389195, 622712, 778390, 1556780, 3113560, 5682247, 6927671, 11364494, 13855342, 22728988, 27710684, 28411235, 34638355, 45457976, 55421368, 56822470, 69276710, 113644940, 138553420, 227289880, 277106840, 505719983, 1011439966, 2022879932, 2528599915, 4045759864, 5057199830, 10114399660, 20228799320]

約数ペア:

[(1, 20228799320), (2, 10114399660), (4, 5057199830), (5, 4045759864), (8, 2528599915), (10, 2022879932), (20, 1011439966), (40, 505719983), (73, 277106840), (89, 227289880), (146, 138553420), (178, 113644940), (292, 69276710), (356, 56822470), (365, 55421368), (445, 45457976), (584, 34638355), (712, 28411235), (730, 27710684), (890, 22728988), (1460, 13855342), (1780, 11364494), (2920, 6927671), (3560, 5682247), (6497, 3113560), (12994, 1556780), (25988, 778390), (32485, 622712), (51976, 389195), (64970, 311356), (77839, 259880), (129940, 155678)]