999063040

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{12589}}^1$

素因数の和:12643

約数の個数: 80

約数和(自身を含む): 2472877440

約数和(自身を除く): 1473814400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 620, 640, 992, 1240, 1280, 1984, 2480, 2560, 3968, 4960, 7936, 9920, 12589, 15872, 19840, 25178, 39680, 50356, 62945, 79360, 100712, 125890, 201424, 251780, 390259, 402848, 503560, 780518, 805696, 1007120, 1561036, 1611392, 1951295, 2014240, 3122072, 3222784, 3902590, 4028480, 6244144, 6445568, 7805180, 8056960, 12488288, 15610360, 16113920, 24976576, 31220720, 32227840, 49953152, 62441440, 99906304, 124882880, 199812608, 249765760, 499531520, 999063040]

約数ペア:

[(1, 999063040), (2, 499531520), (4, 249765760), (5, 199812608), (8, 124882880), (10, 99906304), (16, 62441440), (20, 49953152), (31, 32227840), (32, 31220720), (40, 24976576), (62, 16113920), (64, 15610360), (80, 12488288), (124, 8056960), (128, 7805180), (155, 6445568), (160, 6244144), (248, 4028480), (256, 3902590), (310, 3222784), (320, 3122072), (496, 2014240), (512, 1951295), (620, 1611392), (640, 1561036), (992, 1007120), (1240, 805696), (1280, 780518), (1984, 503560), (2480, 402848), (2560, 390259), (3968, 251780), (4960, 201424), (7936, 125890), (9920, 100712), (12589, 79360), (15872, 62945), (19840, 50356), (25178, 39680)]