20879676

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{151}}^1\times {\mathrm{167}}^1$

素因数の和:351

約数の個数: 72

約数和(自身を含む): 55770624

約数和(自身を除く): 34890948

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 92, 138, 151, 167, 207, 276, 302, 334, 414, 453, 501, 604, 668, 828, 906, 1002, 1359, 1503, 1812, 2004, 2718, 3006, 3473, 3841, 5436, 6012, 6946, 7682, 10419, 11523, 13892, 15364, 20838, 23046, 25217, 31257, 34569, 41676, 46092, 50434, 62514, 69138, 75651, 100868, 125028, 138276, 151302, 226953, 302604, 453906, 579991, 907812, 1159982, 1739973, 2319964, 3479946, 5219919, 6959892, 10439838, 20879676]

約数ペア:

[(1, 20879676), (2, 10439838), (3, 6959892), (4, 5219919), (6, 3479946), (9, 2319964), (12, 1739973), (18, 1159982), (23, 907812), (36, 579991), (46, 453906), (69, 302604), (92, 226953), (138, 151302), (151, 138276), (167, 125028), (207, 100868), (276, 75651), (302, 69138), (334, 62514), (414, 50434), (453, 46092), (501, 41676), (604, 34569), (668, 31257), (828, 25217), (906, 23046), (1002, 20838), (1359, 15364), (1503, 13892), (1812, 11523), (2004, 10419), (2718, 7682), (3006, 6946), (3473, 6012), (3841, 5436)]