28344540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{311}}^1$

素因数の和:368

約数の個数: 144

約数和(自身を含む): 95606784

約数和(自身を除く): 67262244

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 31, 35, 42, 49, 60, 62, 70, 84, 93, 98, 105, 124, 140, 147, 155, 186, 196, 210, 217, 245, 294, 310, 311, 372, 420, 434, 465, 490, 588, 620, 622, 651, 735, 868, 930, 933, 980, 1085, 1244, 1302, 1470, 1519, 1555, 1860, 1866, 2170, 2177, 2604, 2940, 3038, 3110, 3255, 3732, 4340, 4354, 4557, 4665, 6076, 6220, 6510, 6531, 7595, 8708, 9114, 9330, 9641, 10885, 13020, 13062, 15190, 15239, 18228, 18660, 19282, 21770, 22785, 26124, 28923, 30380, 30478, 32655, 38564, 43540, 45570, 45717, 48205, 57846, 60956, 65310, 67487, 76195, 91140, 91434, 96410, 115692, 130620, 134974, 144615, 152390, 182868, 192820, 202461, 228585, 269948, 289230, 304780, 337435, 404922, 457170, 472409, 578460, 674870, 809844, 914340, 944818, 1012305, 1349740, 1417227, 1889636, 2024610, 2362045, 2834454, 4049220, 4724090, 5668908, 7086135, 9448180, 14172270, 28344540]

約数ペア:

[(1, 28344540), (2, 14172270), (3, 9448180), (4, 7086135), (5, 5668908), (6, 4724090), (7, 4049220), (10, 2834454), (12, 2362045), (14, 2024610), (15, 1889636), (20, 1417227), (21, 1349740), (28, 1012305), (30, 944818), (31, 914340), (35, 809844), (42, 674870), (49, 578460), (60, 472409), (62, 457170), (70, 404922), (84, 337435), (93, 304780), (98, 289230), (105, 269948), (124, 228585), (140, 202461), (147, 192820), (155, 182868), (186, 152390), (196, 144615), (210, 134974), (217, 130620), (245, 115692), (294, 96410), (310, 91434), (311, 91140), (372, 76195), (420, 67487), (434, 65310), (465, 60956), (490, 57846), (588, 48205), (620, 45717), (622, 45570), (651, 43540), (735, 38564), (868, 32655), (930, 30478), (933, 30380), (980, 28923), (1085, 26124), (1244, 22785), (1302, 21770), (1470, 19282), (1519, 18660), (1555, 18228), (1860, 15239), (1866, 15190), (2170, 13062), (2177, 13020), (2604, 10885), (2940, 9641), (3038, 9330), (3110, 9114), (3255, 8708), (3732, 7595), (4340, 6531), (4354, 6510), (4557, 6220), (4665, 6076)]