21019879400

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{351503}}^1$

素因数の和:351555

約数の個数: 96

約数和(自身を含む): 54918984960

約数和(自身を除く): 33899105560

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 23, 25, 26, 40, 46, 50, 52, 65, 92, 100, 104, 115, 130, 184, 200, 230, 260, 299, 325, 460, 520, 575, 598, 650, 920, 1150, 1196, 1300, 1495, 2300, 2392, 2600, 2990, 4600, 5980, 7475, 11960, 14950, 29900, 59800, 351503, 703006, 1406012, 1757515, 2812024, 3515030, 4569539, 7030060, 8084569, 8787575, 9139078, 14060120, 16169138, 17575150, 18278156, 22847695, 32338276, 35150300, 36556312, 40422845, 45695390, 64676552, 70300600, 80845690, 91390780, 105099397, 114238475, 161691380, 182781560, 202114225, 210198794, 228476950, 323382760, 404228450, 420397588, 456953900, 525496985, 808456900, 840795176, 913907800, 1050993970, 1616913800, 2101987940, 2627484925, 4203975880, 5254969850, 10509939700, 21019879400]

約数ペア:

[(1, 21019879400), (2, 10509939700), (4, 5254969850), (5, 4203975880), (8, 2627484925), (10, 2101987940), (13, 1616913800), (20, 1050993970), (23, 913907800), (25, 840795176), (26, 808456900), (40, 525496985), (46, 456953900), (50, 420397588), (52, 404228450), (65, 323382760), (92, 228476950), (100, 210198794), (104, 202114225), (115, 182781560), (130, 161691380), (184, 114238475), (200, 105099397), (230, 91390780), (260, 80845690), (299, 70300600), (325, 64676552), (460, 45695390), (520, 40422845), (575, 36556312), (598, 35150300), (650, 32338276), (920, 22847695), (1150, 18278156), (1196, 17575150), (1300, 16169138), (1495, 14060120), (2300, 9139078), (2392, 8787575), (2600, 8084569), (2990, 7030060), (4600, 4569539), (5980, 3515030), (7475, 2812024), (11960, 1757515), (14950, 1406012), (29900, 703006), (59800, 351503)]