289227520

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1$

素因数の和:286

約数の個数: 144

約数和(自身を含む): 738194688

約数和(自身を除く): 448967168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 37, 40, 62, 64, 74, 80, 124, 128, 148, 155, 160, 185, 197, 248, 256, 296, 310, 320, 370, 394, 496, 592, 620, 640, 740, 788, 985, 992, 1147, 1184, 1240, 1280, 1480, 1576, 1970, 1984, 2294, 2368, 2480, 2960, 3152, 3940, 3968, 4588, 4736, 4960, 5735, 5920, 6107, 6304, 7289, 7880, 7936, 9176, 9472, 9920, 11470, 11840, 12214, 12608, 14578, 15760, 18352, 19840, 22940, 23680, 24428, 25216, 29156, 30535, 31520, 36445, 36704, 39680, 45880, 47360, 48856, 50432, 58312, 61070, 63040, 72890, 73408, 91760, 97712, 116624, 122140, 126080, 145780, 146816, 183520, 195424, 225959, 233248, 244280, 252160, 291560, 293632, 367040, 390848, 451918, 466496, 488560, 583120, 734080, 781696, 903836, 932992, 977120, 1129795, 1166240, 1468160, 1563392, 1807672, 1865984, 1954240, 2259590, 2332480, 3615344, 3908480, 4519180, 4664960, 7230688, 7816960, 9038360, 9329920, 14461376, 18076720, 28922752, 36153440, 57845504, 72306880, 144613760, 289227520]

約数ペア:

[(1, 289227520), (2, 144613760), (4, 72306880), (5, 57845504), (8, 36153440), (10, 28922752), (16, 18076720), (20, 14461376), (31, 9329920), (32, 9038360), (37, 7816960), (40, 7230688), (62, 4664960), (64, 4519180), (74, 3908480), (80, 3615344), (124, 2332480), (128, 2259590), (148, 1954240), (155, 1865984), (160, 1807672), (185, 1563392), (197, 1468160), (248, 1166240), (256, 1129795), (296, 977120), (310, 932992), (320, 903836), (370, 781696), (394, 734080), (496, 583120), (592, 488560), (620, 466496), (640, 451918), (740, 390848), (788, 367040), (985, 293632), (992, 291560), (1147, 252160), (1184, 244280), (1240, 233248), (1280, 225959), (1480, 195424), (1576, 183520), (1970, 146816), (1984, 145780), (2294, 126080), (2368, 122140), (2480, 116624), (2960, 97712), (3152, 91760), (3940, 73408), (3968, 72890), (4588, 63040), (4736, 61070), (4960, 58312), (5735, 50432), (5920, 48856), (6107, 47360), (6304, 45880), (7289, 39680), (7880, 36704), (7936, 36445), (9176, 31520), (9472, 30535), (9920, 29156), (11470, 25216), (11840, 24428), (12214, 23680), (12608, 22940), (14578, 19840), (15760, 18352)]