158478740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:214

約数の個数: 144

約数和(自身を含む): 413683200

約数和(自身を除く): 255204460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 49, 70, 79, 89, 92, 98, 115, 140, 158, 161, 178, 196, 230, 245, 316, 322, 356, 395, 445, 460, 490, 553, 623, 644, 790, 805, 890, 980, 1106, 1127, 1246, 1580, 1610, 1780, 1817, 2047, 2212, 2254, 2492, 2765, 3115, 3220, 3634, 3871, 4094, 4361, 4508, 5530, 5635, 6230, 7031, 7268, 7742, 8188, 8722, 9085, 10235, 11060, 11270, 12460, 12719, 14062, 14329, 15484, 17444, 18170, 19355, 20470, 21805, 22540, 25438, 28124, 28658, 35155, 36340, 38710, 40940, 43610, 49217, 50876, 57316, 63595, 70310, 71645, 77420, 87220, 89033, 98434, 100303, 127190, 140620, 143290, 161713, 178066, 196868, 200606, 246085, 254380, 286580, 323426, 344519, 356132, 401212, 445165, 492170, 501515, 646852, 689038, 808565, 890330, 984340, 1003030, 1131991, 1378076, 1617130, 1722595, 1780660, 2006060, 2263982, 3234260, 3445190, 4527964, 5659955, 6890380, 7923937, 11319910, 15847874, 22639820, 31695748, 39619685, 79239370, 158478740]

約数ペア:

[(1, 158478740), (2, 79239370), (4, 39619685), (5, 31695748), (7, 22639820), (10, 15847874), (14, 11319910), (20, 7923937), (23, 6890380), (28, 5659955), (35, 4527964), (46, 3445190), (49, 3234260), (70, 2263982), (79, 2006060), (89, 1780660), (92, 1722595), (98, 1617130), (115, 1378076), (140, 1131991), (158, 1003030), (161, 984340), (178, 890330), (196, 808565), (230, 689038), (245, 646852), (316, 501515), (322, 492170), (356, 445165), (395, 401212), (445, 356132), (460, 344519), (490, 323426), (553, 286580), (623, 254380), (644, 246085), (790, 200606), (805, 196868), (890, 178066), (980, 161713), (1106, 143290), (1127, 140620), (1246, 127190), (1580, 100303), (1610, 98434), (1780, 89033), (1817, 87220), (2047, 77420), (2212, 71645), (2254, 70310), (2492, 63595), (2765, 57316), (3115, 50876), (3220, 49217), (3634, 43610), (3871, 40940), (4094, 38710), (4361, 36340), (4508, 35155), (5530, 28658), (5635, 28124), (6230, 25438), (7031, 22540), (7268, 21805), (7742, 20470), (8188, 19355), (8722, 18170), (9085, 17444), (10235, 15484), (11060, 14329), (11270, 14062), (12460, 12719)]