90771100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:188

約数の個数: 144

約数和(自身を含む): 239984640

約数和(自身を除く): 149213540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 31, 35, 47, 50, 62, 70, 89, 94, 100, 124, 140, 155, 175, 178, 188, 217, 235, 310, 329, 350, 356, 434, 445, 470, 620, 623, 658, 700, 775, 868, 890, 940, 1085, 1175, 1246, 1316, 1457, 1550, 1645, 1780, 2170, 2225, 2350, 2492, 2759, 2914, 3100, 3115, 3290, 4183, 4340, 4450, 4700, 5425, 5518, 5828, 6230, 6580, 7285, 8225, 8366, 8900, 10199, 10850, 11036, 12460, 13795, 14570, 15575, 16450, 16732, 19313, 20398, 20915, 21700, 27590, 29140, 29281, 31150, 32900, 36425, 38626, 40796, 41830, 50995, 55180, 58562, 62300, 68975, 72850, 77252, 83660, 96565, 101990, 104575, 117124, 129673, 137950, 145700, 146405, 193130, 203980, 209150, 254975, 259346, 275900, 292810, 386260, 418300, 482825, 509950, 518692, 585620, 648365, 732025, 907711, 965650, 1019900, 1296730, 1464050, 1815422, 1931300, 2593460, 2928100, 3241825, 3630844, 4538555, 6483650, 9077110, 12967300, 18154220, 22692775, 45385550, 90771100]

約数ペア:

[(1, 90771100), (2, 45385550), (4, 22692775), (5, 18154220), (7, 12967300), (10, 9077110), (14, 6483650), (20, 4538555), (25, 3630844), (28, 3241825), (31, 2928100), (35, 2593460), (47, 1931300), (50, 1815422), (62, 1464050), (70, 1296730), (89, 1019900), (94, 965650), (100, 907711), (124, 732025), (140, 648365), (155, 585620), (175, 518692), (178, 509950), (188, 482825), (217, 418300), (235, 386260), (310, 292810), (329, 275900), (350, 259346), (356, 254975), (434, 209150), (445, 203980), (470, 193130), (620, 146405), (623, 145700), (658, 137950), (700, 129673), (775, 117124), (868, 104575), (890, 101990), (940, 96565), (1085, 83660), (1175, 77252), (1246, 72850), (1316, 68975), (1457, 62300), (1550, 58562), (1645, 55180), (1780, 50995), (2170, 41830), (2225, 40796), (2350, 38626), (2492, 36425), (2759, 32900), (2914, 31150), (3100, 29281), (3115, 29140), (3290, 27590), (4183, 21700), (4340, 20915), (4450, 20398), (4700, 19313), (5425, 16732), (5518, 16450), (5828, 15575), (6230, 14570), (6580, 13795), (7285, 12460), (8225, 11036), (8366, 10850), (8900, 10199)]