202017040

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{491}}^1$

素因数の和:680

約数の個数: 80

約数和(自身を含む): 486843840

約数和(自身を除く): 284826800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 139, 148, 185, 278, 296, 370, 491, 556, 592, 695, 740, 982, 1112, 1390, 1480, 1964, 2224, 2455, 2780, 2960, 3928, 4910, 5143, 5560, 7856, 9820, 10286, 11120, 18167, 19640, 20572, 25715, 36334, 39280, 41144, 51430, 68249, 72668, 82288, 90835, 102860, 136498, 145336, 181670, 205720, 272996, 290672, 341245, 363340, 411440, 545992, 682490, 726680, 1091984, 1364980, 1453360, 2525213, 2729960, 5050426, 5459920, 10100852, 12626065, 20201704, 25252130, 40403408, 50504260, 101008520, 202017040]

約数ペア:

[(1, 202017040), (2, 101008520), (4, 50504260), (5, 40403408), (8, 25252130), (10, 20201704), (16, 12626065), (20, 10100852), (37, 5459920), (40, 5050426), (74, 2729960), (80, 2525213), (139, 1453360), (148, 1364980), (185, 1091984), (278, 726680), (296, 682490), (370, 545992), (491, 411440), (556, 363340), (592, 341245), (695, 290672), (740, 272996), (982, 205720), (1112, 181670), (1390, 145336), (1480, 136498), (1964, 102860), (2224, 90835), (2455, 82288), (2780, 72668), (2960, 68249), (3928, 51430), (4910, 41144), (5143, 39280), (5560, 36334), (7856, 25715), (9820, 20572), (10286, 19640), (11120, 18167)]