327399680

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{223}}^1$

素因数の和:312

約数の個数: 144

約数和(自身を含む): 835129344

約数和(自身を除く): 507729664

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, 223, 248, 256, 296, 310, 320, 370, 446, 496, 592, 620, 640, 740, 892, 992, 1115, 1147, 1184, 1240, 1280, 1480, 1784, 1984, 2230, 2294, 2368, 2480, 2960, 3568, 3968, 4460, 4588, 4736, 4960, 5735, 5920, 6913, 7136, 7936, 8251, 8920, 9176, 9472, 9920, 11470, 11840, 13826, 14272, 16502, 17840, 18352, 19840, 22940, 23680, 27652, 28544, 33004, 34565, 35680, 36704, 39680, 41255, 45880, 47360, 55304, 57088, 66008, 69130, 71360, 73408, 82510, 91760, 110608, 132016, 138260, 142720, 146816, 165020, 183520, 221216, 255781, 264032, 276520, 285440, 293632, 330040, 367040, 442432, 511562, 528064, 553040, 660080, 734080, 884864, 1023124, 1056128, 1106080, 1278905, 1320160, 1468160, 1769728, 2046248, 2112256, 2212160, 2557810, 2640320, 4092496, 4424320, 5115620, 5280640, 8184992, 8848640, 10231240, 10561280, 16369984, 20462480, 32739968, 40924960, 65479936, 81849920, 163699840, 327399680]

約数ペア:

[(1, 327399680), (2, 163699840), (4, 81849920), (5, 65479936), (8, 40924960), (10, 32739968), (16, 20462480), (20, 16369984), (31, 10561280), (32, 10231240), (37, 8848640), (40, 8184992), (62, 5280640), (64, 5115620), (74, 4424320), (80, 4092496), (124, 2640320), (128, 2557810), (148, 2212160), (155, 2112256), (160, 2046248), (185, 1769728), (223, 1468160), (248, 1320160), (256, 1278905), (296, 1106080), (310, 1056128), (320, 1023124), (370, 884864), (446, 734080), (496, 660080), (592, 553040), (620, 528064), (640, 511562), (740, 442432), (892, 367040), (992, 330040), (1115, 293632), (1147, 285440), (1184, 276520), (1240, 264032), (1280, 255781), (1480, 221216), (1784, 183520), (1984, 165020), (2230, 146816), (2294, 142720), (2368, 138260), (2480, 132016), (2960, 110608), (3568, 91760), (3968, 82510), (4460, 73408), (4588, 71360), (4736, 69130), (4960, 66008), (5735, 57088), (5920, 55304), (6913, 47360), (7136, 45880), (7936, 41255), (8251, 39680), (8920, 36704), (9176, 35680), (9472, 34565), (9920, 33004), (11470, 28544), (11840, 27652), (13826, 23680), (14272, 22940), (16502, 19840), (17840, 18352)]