81726540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{6277}}^1$

素因数の和:6327

約数の個数: 96

約数和(自身を含む): 270004224

約数和(自身を除く): 188277684

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 31, 35, 42, 60, 62, 70, 84, 93, 105, 124, 140, 155, 186, 210, 217, 310, 372, 420, 434, 465, 620, 651, 868, 930, 1085, 1302, 1860, 2170, 2604, 3255, 4340, 6277, 6510, 12554, 13020, 18831, 25108, 31385, 37662, 43939, 62770, 75324, 87878, 94155, 125540, 131817, 175756, 188310, 194587, 219695, 263634, 376620, 389174, 439390, 527268, 583761, 659085, 778348, 878780, 972935, 1167522, 1318170, 1362109, 1945870, 2335044, 2636340, 2724218, 2918805, 3891740, 4086327, 5448436, 5837610, 6810545, 8172654, 11675220, 13621090, 16345308, 20431635, 27242180, 40863270, 81726540]

約数ペア:

[(1, 81726540), (2, 40863270), (3, 27242180), (4, 20431635), (5, 16345308), (6, 13621090), (7, 11675220), (10, 8172654), (12, 6810545), (14, 5837610), (15, 5448436), (20, 4086327), (21, 3891740), (28, 2918805), (30, 2724218), (31, 2636340), (35, 2335044), (42, 1945870), (60, 1362109), (62, 1318170), (70, 1167522), (84, 972935), (93, 878780), (105, 778348), (124, 659085), (140, 583761), (155, 527268), (186, 439390), (210, 389174), (217, 376620), (310, 263634), (372, 219695), (420, 194587), (434, 188310), (465, 175756), (620, 131817), (651, 125540), (868, 94155), (930, 87878), (1085, 75324), (1302, 62770), (1860, 43939), (2170, 37662), (2604, 31385), (3255, 25108), (4340, 18831), (6277, 13020), (6510, 12554)]