78966820

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1$

素因数の和:205

約数の個数: 96

約数和(自身を含む): 182891520

約数和(自身を除く): 103924700

約数列:

[1, 2, 4, 5, 10, 20, 23, 41, 46, 53, 79, 82, 92, 106, 115, 158, 164, 205, 212, 230, 265, 316, 395, 410, 460, 530, 790, 820, 943, 1060, 1219, 1580, 1817, 1886, 2173, 2438, 3239, 3634, 3772, 4187, 4346, 4715, 4876, 6095, 6478, 7268, 8374, 8692, 9085, 9430, 10865, 12190, 12956, 16195, 16748, 18170, 18860, 20935, 21730, 24380, 32390, 36340, 41870, 43460, 49979, 64780, 74497, 83740, 96301, 99958, 148994, 171667, 192602, 199916, 249895, 297988, 343334, 372485, 385204, 481505, 499790, 686668, 744970, 858335, 963010, 999580, 1489940, 1716670, 1926020, 3433340, 3948341, 7896682, 15793364, 19741705, 39483410, 78966820]

約数ペア:

[(1, 78966820), (2, 39483410), (4, 19741705), (5, 15793364), (10, 7896682), (20, 3948341), (23, 3433340), (41, 1926020), (46, 1716670), (53, 1489940), (79, 999580), (82, 963010), (92, 858335), (106, 744970), (115, 686668), (158, 499790), (164, 481505), (205, 385204), (212, 372485), (230, 343334), (265, 297988), (316, 249895), (395, 199916), (410, 192602), (460, 171667), (530, 148994), (790, 99958), (820, 96301), (943, 83740), (1060, 74497), (1219, 64780), (1580, 49979), (1817, 43460), (1886, 41870), (2173, 36340), (2438, 32390), (3239, 24380), (3634, 21730), (3772, 20935), (4187, 18860), (4346, 18170), (4715, 16748), (4876, 16195), (6095, 12956), (6478, 12190), (7268, 10865), (8374, 9430), (8692, 9085)]