205368660

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{419}}^1$

素因数の和:830

約数の個数: 144

約数和(自身を含む): 715478400

約数和(自身を除く): 510109740

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 389, 419, 420, 630, 778, 838, 1167, 1257, 1260, 1556, 1676, 1945, 2095, 2334, 2514, 2723, 2933, 3501, 3771, 3890, 4190, 4668, 5028, 5446, 5835, 5866, 6285, 7002, 7542, 7780, 8169, 8380, 8799, 10892, 11670, 11732, 12570, 13615, 14004, 14665, 15084, 16338, 17505, 17598, 18855, 23340, 24507, 25140, 26397, 27230, 29330, 32676, 35010, 35196, 37710, 40845, 43995, 49014, 52794, 54460, 58660, 70020, 75420, 81690, 87990, 98028, 105588, 122535, 131985, 162991, 163380, 175980, 245070, 263970, 325982, 488973, 490140, 527940, 651964, 814955, 977946, 1140937, 1466919, 1629910, 1955892, 2281874, 2444865, 2933838, 3259820, 3422811, 4563748, 4889730, 5704685, 5867676, 6845622, 7334595, 9779460, 10268433, 11409370, 13691244, 14669190, 17114055, 20536866, 22818740, 29338380, 34228110, 41073732, 51342165, 68456220, 102684330, 205368660]

約数ペア:

[(1, 205368660), (2, 102684330), (3, 68456220), (4, 51342165), (5, 41073732), (6, 34228110), (7, 29338380), (9, 22818740), (10, 20536866), (12, 17114055), (14, 14669190), (15, 13691244), (18, 11409370), (20, 10268433), (21, 9779460), (28, 7334595), (30, 6845622), (35, 5867676), (36, 5704685), (42, 4889730), (45, 4563748), (60, 3422811), (63, 3259820), (70, 2933838), (84, 2444865), (90, 2281874), (105, 1955892), (126, 1629910), (140, 1466919), (180, 1140937), (210, 977946), (252, 814955), (315, 651964), (389, 527940), (419, 490140), (420, 488973), (630, 325982), (778, 263970), (838, 245070), (1167, 175980), (1257, 163380), (1260, 162991), (1556, 131985), (1676, 122535), (1945, 105588), (2095, 98028), (2334, 87990), (2514, 81690), (2723, 75420), (2933, 70020), (3501, 58660), (3771, 54460), (3890, 52794), (4190, 49014), (4668, 43995), (5028, 40845), (5446, 37710), (5835, 35196), (5866, 35010), (6285, 32676), (7002, 29330), (7542, 27230), (7780, 26397), (8169, 25140), (8380, 24507), (8799, 23340), (10892, 18855), (11670, 17598), (11732, 17505), (12570, 16338), (13615, 15084), (14004, 14665)]