20575100

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:77

約数の個数: 216

約数和(自身を含む): 62339760

約数和(自身を除く): 41764660

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 17, 19, 20, 25, 26, 28, 34, 35, 38, 49, 50, 52, 65, 68, 70, 76, 85, 91, 95, 98, 100, 119, 130, 133, 140, 170, 175, 182, 190, 196, 221, 238, 245, 247, 260, 266, 323, 325, 340, 350, 364, 380, 425, 442, 455, 475, 476, 490, 494, 532, 595, 637, 646, 650, 665, 700, 833, 850, 884, 910, 931, 950, 980, 988, 1105, 1190, 1225, 1235, 1274, 1292, 1300, 1330, 1547, 1615, 1666, 1700, 1729, 1820, 1862, 1900, 2210, 2261, 2275, 2380, 2450, 2470, 2548, 2660, 2975, 3094, 3185, 3230, 3325, 3332, 3458, 3724, 4165, 4199, 4420, 4522, 4550, 4655, 4900, 4940, 5525, 5950, 6175, 6188, 6370, 6460, 6650, 6916, 7735, 8075, 8330, 8398, 8645, 9044, 9100, 9310, 10829, 11050, 11305, 11900, 12103, 12350, 12740, 13300, 15470, 15827, 15925, 16150, 16660, 16796, 17290, 18620, 20825, 20995, 21658, 22100, 22610, 23275, 24206, 24700, 29393, 30940, 31654, 31850, 32300, 34580, 38675, 41650, 41990, 43225, 43316, 45220, 46550, 48412, 54145, 56525, 58786, 60515, 63308, 63700, 77350, 79135, 83300, 83980, 86450, 93100, 104975, 108290, 113050, 117572, 121030, 146965, 154700, 158270, 172900, 205751, 209950, 216580, 226100, 242060, 270725, 293930, 302575, 316540, 395675, 411502, 419900, 541450, 587860, 605150, 734825, 791350, 823004, 1028755, 1082900, 1210300, 1469650, 1582700, 2057510, 2939300, 4115020, 5143775, 10287550, 20575100]

約数ペア:

[(1, 20575100), (2, 10287550), (4, 5143775), (5, 4115020), (7, 2939300), (10, 2057510), (13, 1582700), (14, 1469650), (17, 1210300), (19, 1082900), (20, 1028755), (25, 823004), (26, 791350), (28, 734825), (34, 605150), (35, 587860), (38, 541450), (49, 419900), (50, 411502), (52, 395675), (65, 316540), (68, 302575), (70, 293930), (76, 270725), (85, 242060), (91, 226100), (95, 216580), (98, 209950), (100, 205751), (119, 172900), (130, 158270), (133, 154700), (140, 146965), (170, 121030), (175, 117572), (182, 113050), (190, 108290), (196, 104975), (221, 93100), (238, 86450), (245, 83980), (247, 83300), (260, 79135), (266, 77350), (323, 63700), (325, 63308), (340, 60515), (350, 58786), (364, 56525), (380, 54145), (425, 48412), (442, 46550), (455, 45220), (475, 43316), (476, 43225), (490, 41990), (494, 41650), (532, 38675), (595, 34580), (637, 32300), (646, 31850), (650, 31654), (665, 30940), (700, 29393), (833, 24700), (850, 24206), (884, 23275), (910, 22610), (931, 22100), (950, 21658), (980, 20995), (988, 20825), (1105, 18620), (1190, 17290), (1225, 16796), (1235, 16660), (1274, 16150), (1292, 15925), (1300, 15827), (1330, 15470), (1547, 13300), (1615, 12740), (1666, 12350), (1700, 12103), (1729, 11900), (1820, 11305), (1862, 11050), (1900, 10829), (2210, 9310), (2261, 9100), (2275, 9044), (2380, 8645), (2450, 8398), (2470, 8330), (2548, 8075), (2660, 7735), (2975, 6916), (3094, 6650), (3185, 6460), (3230, 6370), (3325, 6188), (3332, 6175), (3458, 5950), (3724, 5525), (4165, 4940), (4199, 4900), (4420, 4655), (4522, 4550)]