661455720

素因数分解:

$2^3\times 3^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{4003}}^1$

素因数の和:4046

約数の個数: 192

約数和(自身を含む): 2361078720

約数和(自身を除く): 1699623000

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 17, 18, 20, 24, 27, 30, 34, 36, 40, 45, 51, 54, 60, 68, 72, 81, 85, 90, 102, 108, 120, 135, 136, 153, 162, 170, 180, 204, 216, 243, 255, 270, 306, 324, 340, 360, 405, 408, 459, 486, 510, 540, 612, 648, 680, 765, 810, 918, 972, 1020, 1080, 1215, 1224, 1377, 1530, 1620, 1836, 1944, 2040, 2295, 2430, 2754, 3060, 3240, 3672, 4003, 4131, 4590, 4860, 5508, 6120, 6885, 8006, 8262, 9180, 9720, 11016, 12009, 13770, 16012, 16524, 18360, 20015, 20655, 24018, 27540, 32024, 33048, 36027, 40030, 41310, 48036, 55080, 60045, 68051, 72054, 80060, 82620, 96072, 108081, 120090, 136102, 144108, 160120, 165240, 180135, 204153, 216162, 240180, 272204, 288216, 324243, 340255, 360270, 408306, 432324, 480360, 540405, 544408, 612459, 648486, 680510, 720540, 816612, 864648, 972729, 1020765, 1080810, 1224918, 1296972, 1361020, 1441080, 1621215, 1633224, 1837377, 1945458, 2041530, 2161620, 2449836, 2593944, 2722040, 3062295, 3242430, 3674754, 3890916, 4083060, 4323240, 4863645, 4899672, 5512131, 6124590, 6484860, 7349508, 7781832, 8166120, 9186885, 9727290, 11024262, 12249180, 12969720, 14699016, 16536393, 18373770, 19454580, 22048524, 24498360, 27560655, 33072786, 36747540, 38909160, 44097048, 55121310, 66145572, 73495080, 82681965, 110242620, 132291144, 165363930, 220485240, 330727860, 661455720]

約数ペア:

[(1, 661455720), (2, 330727860), (3, 220485240), (4, 165363930), (5, 132291144), (6, 110242620), (8, 82681965), (9, 73495080), (10, 66145572), (12, 55121310), (15, 44097048), (17, 38909160), (18, 36747540), (20, 33072786), (24, 27560655), (27, 24498360), (30, 22048524), (34, 19454580), (36, 18373770), (40, 16536393), (45, 14699016), (51, 12969720), (54, 12249180), (60, 11024262), (68, 9727290), (72, 9186885), (81, 8166120), (85, 7781832), (90, 7349508), (102, 6484860), (108, 6124590), (120, 5512131), (135, 4899672), (136, 4863645), (153, 4323240), (162, 4083060), (170, 3890916), (180, 3674754), (204, 3242430), (216, 3062295), (243, 2722040), (255, 2593944), (270, 2449836), (306, 2161620), (324, 2041530), (340, 1945458), (360, 1837377), (405, 1633224), (408, 1621215), (459, 1441080), (486, 1361020), (510, 1296972), (540, 1224918), (612, 1080810), (648, 1020765), (680, 972729), (765, 864648), (810, 816612), (918, 720540), (972, 680510), (1020, 648486), (1080, 612459), (1215, 544408), (1224, 540405), (1377, 480360), (1530, 432324), (1620, 408306), (1836, 360270), (1944, 340255), (2040, 324243), (2295, 288216), (2430, 272204), (2754, 240180), (3060, 216162), (3240, 204153), (3672, 180135), (4003, 165240), (4131, 160120), (4590, 144108), (4860, 136102), (5508, 120090), (6120, 108081), (6885, 96072), (8006, 82620), (8262, 80060), (9180, 72054), (9720, 68051), (11016, 60045), (12009, 55080), (13770, 48036), (16012, 41310), (16524, 40030), (18360, 36027), (20015, 33048), (20655, 32024), (24018, 27540)]