1389236480

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{223}}^1$

素因数の和:432

約数の個数: 144

約数和(自身を含む): 3472379904

約数和(自身を除く): 2083143424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 157, 160, 223, 248, 256, 310, 314, 320, 446, 496, 620, 628, 640, 785, 892, 992, 1115, 1240, 1256, 1280, 1570, 1784, 1984, 2230, 2480, 2512, 3140, 3568, 3968, 4460, 4867, 4960, 5024, 6280, 6913, 7136, 7936, 8920, 9734, 9920, 10048, 12560, 13826, 14272, 17840, 19468, 19840, 20096, 24335, 25120, 27652, 28544, 34565, 35011, 35680, 38936, 39680, 40192, 48670, 50240, 55304, 57088, 69130, 70022, 71360, 77872, 97340, 100480, 110608, 138260, 140044, 142720, 155744, 175055, 194680, 200960, 221216, 276520, 280088, 285440, 311488, 350110, 389360, 442432, 553040, 560176, 622976, 700220, 778720, 884864, 1085341, 1106080, 1120352, 1245952, 1400440, 1557440, 1769728, 2170682, 2212160, 2240704, 2800880, 3114880, 4341364, 4424320, 4481408, 5426705, 5601760, 6229760, 8682728, 8848640, 8962816, 10853410, 11203520, 17365456, 21706820, 22407040, 34730912, 43413640, 44814080, 69461824, 86827280, 138923648, 173654560, 277847296, 347309120, 694618240, 1389236480]

約数ペア:

[(1, 1389236480), (2, 694618240), (4, 347309120), (5, 277847296), (8, 173654560), (10, 138923648), (16, 86827280), (20, 69461824), (31, 44814080), (32, 43413640), (40, 34730912), (62, 22407040), (64, 21706820), (80, 17365456), (124, 11203520), (128, 10853410), (155, 8962816), (157, 8848640), (160, 8682728), (223, 6229760), (248, 5601760), (256, 5426705), (310, 4481408), (314, 4424320), (320, 4341364), (446, 3114880), (496, 2800880), (620, 2240704), (628, 2212160), (640, 2170682), (785, 1769728), (892, 1557440), (992, 1400440), (1115, 1245952), (1240, 1120352), (1256, 1106080), (1280, 1085341), (1570, 884864), (1784, 778720), (1984, 700220), (2230, 622976), (2480, 560176), (2512, 553040), (3140, 442432), (3568, 389360), (3968, 350110), (4460, 311488), (4867, 285440), (4960, 280088), (5024, 276520), (6280, 221216), (6913, 200960), (7136, 194680), (7936, 175055), (8920, 155744), (9734, 142720), (9920, 140044), (10048, 138260), (12560, 110608), (13826, 100480), (14272, 97340), (17840, 77872), (19468, 71360), (19840, 70022), (20096, 69130), (24335, 57088), (25120, 55304), (27652, 50240), (28544, 48670), (34565, 40192), (35011, 39680), (35680, 38936)]