20212867160

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{163}}^1\times {\mathrm{911}}^1$

素因数の和:1209

約数の個数: 128

約数和(自身を含む): 47490831360

約数和(自身を除く): 27277964200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 83, 163, 164, 166, 205, 326, 328, 332, 410, 415, 652, 664, 815, 820, 830, 911, 1304, 1630, 1640, 1660, 1822, 3260, 3320, 3403, 3644, 4555, 6520, 6683, 6806, 7288, 9110, 13366, 13529, 13612, 17015, 18220, 26732, 27058, 27224, 33415, 34030, 36440, 37351, 53464, 54116, 66830, 67645, 68060, 74702, 75613, 108232, 133660, 135290, 136120, 148493, 149404, 151226, 186755, 267320, 270580, 296986, 298808, 302452, 373510, 378065, 541160, 554689, 593972, 604904, 742465, 747020, 756130, 1109378, 1187944, 1484930, 1494040, 1512260, 2218756, 2773445, 2969860, 3024520, 3100133, 4437512, 5546890, 5939720, 6088213, 6200266, 11093780, 12176426, 12324919, 12400532, 15500665, 22187560, 24352852, 24649838, 24801064, 30441065, 31001330, 48705704, 49299676, 60882130, 61624595, 62002660, 98599352, 121764260, 123249190, 124005320, 243528520, 246498380, 492996760, 505321679, 1010643358, 2021286716, 2526608395, 4042573432, 5053216790, 10106433580, 20212867160]

約数ペア:

[(1, 20212867160), (2, 10106433580), (4, 5053216790), (5, 4042573432), (8, 2526608395), (10, 2021286716), (20, 1010643358), (40, 505321679), (41, 492996760), (82, 246498380), (83, 243528520), (163, 124005320), (164, 123249190), (166, 121764260), (205, 98599352), (326, 62002660), (328, 61624595), (332, 60882130), (410, 49299676), (415, 48705704), (652, 31001330), (664, 30441065), (815, 24801064), (820, 24649838), (830, 24352852), (911, 22187560), (1304, 15500665), (1630, 12400532), (1640, 12324919), (1660, 12176426), (1822, 11093780), (3260, 6200266), (3320, 6088213), (3403, 5939720), (3644, 5546890), (4555, 4437512), (6520, 3100133), (6683, 3024520), (6806, 2969860), (7288, 2773445), (9110, 2218756), (13366, 1512260), (13529, 1494040), (13612, 1484930), (17015, 1187944), (18220, 1109378), (26732, 756130), (27058, 747020), (27224, 742465), (33415, 604904), (34030, 593972), (36440, 554689), (37351, 541160), (53464, 378065), (54116, 373510), (66830, 302452), (67645, 298808), (68060, 296986), (74702, 270580), (75613, 267320), (108232, 186755), (133660, 151226), (135290, 149404), (136120, 148493)]