205471560

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{739}}^1$

素因数の和:1091

約数の個数: 128

約数和(自身を含む): 707558400

約数和(自身を除く): 502086840

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 331, 420, 662, 739, 840, 993, 1324, 1478, 1655, 1986, 2217, 2317, 2648, 2956, 3310, 3695, 3972, 4434, 4634, 4965, 5173, 5912, 6620, 6951, 7390, 7944, 8868, 9268, 9930, 10346, 11085, 11585, 13240, 13902, 14780, 15519, 17736, 18536, 19860, 20692, 22170, 23170, 25865, 27804, 29560, 31038, 34755, 39720, 41384, 44340, 46340, 51730, 55608, 62076, 69510, 77595, 88680, 92680, 103460, 124152, 139020, 155190, 206920, 244609, 278040, 310380, 489218, 620760, 733827, 978436, 1223045, 1467654, 1712263, 1956872, 2446090, 2935308, 3424526, 3669135, 4892180, 5136789, 5870616, 6849052, 7338270, 8561315, 9784360, 10273578, 13698104, 14676540, 17122630, 20547156, 25683945, 29353080, 34245260, 41094312, 51367890, 68490520, 102735780, 205471560]

約数ペア:

[(1, 205471560), (2, 102735780), (3, 68490520), (4, 51367890), (5, 41094312), (6, 34245260), (7, 29353080), (8, 25683945), (10, 20547156), (12, 17122630), (14, 14676540), (15, 13698104), (20, 10273578), (21, 9784360), (24, 8561315), (28, 7338270), (30, 6849052), (35, 5870616), (40, 5136789), (42, 4892180), (56, 3669135), (60, 3424526), (70, 2935308), (84, 2446090), (105, 1956872), (120, 1712263), (140, 1467654), (168, 1223045), (210, 978436), (280, 733827), (331, 620760), (420, 489218), (662, 310380), (739, 278040), (840, 244609), (993, 206920), (1324, 155190), (1478, 139020), (1655, 124152), (1986, 103460), (2217, 92680), (2317, 88680), (2648, 77595), (2956, 69510), (3310, 62076), (3695, 55608), (3972, 51730), (4434, 46340), (4634, 44340), (4965, 41384), (5173, 39720), (5912, 34755), (6620, 31038), (6951, 29560), (7390, 27804), (7944, 25865), (8868, 23170), (9268, 22170), (9930, 20692), (10346, 19860), (11085, 18536), (11585, 17736), (13240, 15519), (13902, 14780)]