646821180

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{2741}}^1$

素因数の和:2801

約数の個数: 192

約数和(自身を含む): 2211148800

約数和(自身を除く): 1564327620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 23, 27, 30, 36, 38, 45, 46, 54, 57, 60, 69, 76, 90, 92, 95, 108, 114, 115, 135, 138, 171, 180, 190, 207, 228, 230, 270, 276, 285, 342, 345, 380, 414, 437, 460, 513, 540, 570, 621, 684, 690, 828, 855, 874, 1026, 1035, 1140, 1242, 1311, 1380, 1710, 1748, 2052, 2070, 2185, 2484, 2565, 2622, 2741, 3105, 3420, 3933, 4140, 4370, 5130, 5244, 5482, 6210, 6555, 7866, 8223, 8740, 10260, 10964, 11799, 12420, 13110, 13705, 15732, 16446, 19665, 23598, 24669, 26220, 27410, 32892, 39330, 41115, 47196, 49338, 52079, 54820, 58995, 63043, 74007, 78660, 82230, 98676, 104158, 117990, 123345, 126086, 148014, 156237, 164460, 189129, 208316, 235980, 246690, 252172, 260395, 296028, 312474, 315215, 370035, 378258, 468711, 493380, 520790, 567387, 624948, 630430, 740070, 756516, 781185, 937422, 945645, 1041580, 1134774, 1197817, 1260860, 1406133, 1480140, 1562370, 1702161, 1874844, 1891290, 2269548, 2343555, 2395634, 2812266, 2836935, 3124740, 3404322, 3593451, 3782580, 4687110, 4791268, 5624532, 5673870, 5989085, 6808644, 7030665, 7186902, 8510805, 9374220, 10780353, 11347740, 11978170, 14061330, 14373804, 17021610, 17967255, 21560706, 23956340, 28122660, 32341059, 34043220, 35934510, 43121412, 53901765, 64682118, 71869020, 107803530, 129364236, 161705295, 215607060, 323410590, 646821180]

約数ペア:

[(1, 646821180), (2, 323410590), (3, 215607060), (4, 161705295), (5, 129364236), (6, 107803530), (9, 71869020), (10, 64682118), (12, 53901765), (15, 43121412), (18, 35934510), (19, 34043220), (20, 32341059), (23, 28122660), (27, 23956340), (30, 21560706), (36, 17967255), (38, 17021610), (45, 14373804), (46, 14061330), (54, 11978170), (57, 11347740), (60, 10780353), (69, 9374220), (76, 8510805), (90, 7186902), (92, 7030665), (95, 6808644), (108, 5989085), (114, 5673870), (115, 5624532), (135, 4791268), (138, 4687110), (171, 3782580), (180, 3593451), (190, 3404322), (207, 3124740), (228, 2836935), (230, 2812266), (270, 2395634), (276, 2343555), (285, 2269548), (342, 1891290), (345, 1874844), (380, 1702161), (414, 1562370), (437, 1480140), (460, 1406133), (513, 1260860), (540, 1197817), (570, 1134774), (621, 1041580), (684, 945645), (690, 937422), (828, 781185), (855, 756516), (874, 740070), (1026, 630430), (1035, 624948), (1140, 567387), (1242, 520790), (1311, 493380), (1380, 468711), (1710, 378258), (1748, 370035), (2052, 315215), (2070, 312474), (2185, 296028), (2484, 260395), (2565, 252172), (2622, 246690), (2741, 235980), (3105, 208316), (3420, 189129), (3933, 164460), (4140, 156237), (4370, 148014), (5130, 126086), (5244, 123345), (5482, 117990), (6210, 104158), (6555, 98676), (7866, 82230), (8223, 78660), (8740, 74007), (10260, 63043), (10964, 58995), (11799, 54820), (12420, 52079), (13110, 49338), (13705, 47196), (15732, 41115), (16446, 39330), (19665, 32892), (23598, 27410), (24669, 26220)]