1815589020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{39659}}^1$

素因数の和:39787

約数の個数: 96

約数和(自身を含む): 5863334400

約数和(自身を除く): 4047745380

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 109, 140, 210, 218, 327, 420, 436, 545, 654, 763, 1090, 1308, 1526, 1635, 2180, 2289, 3052, 3270, 3815, 4578, 6540, 7630, 9156, 11445, 15260, 22890, 39659, 45780, 79318, 118977, 158636, 198295, 237954, 277613, 396590, 475908, 555226, 594885, 793180, 832839, 1110452, 1189770, 1388065, 1665678, 2379540, 2776130, 3331356, 4164195, 4322831, 5552260, 8328390, 8645662, 12968493, 16656780, 17291324, 21614155, 25936986, 30259817, 43228310, 51873972, 60519634, 64842465, 86456620, 90779451, 121039268, 129684930, 151299085, 181558902, 259369860, 302598170, 363117804, 453897255, 605196340, 907794510, 1815589020]

約数ペア:

[(1, 1815589020), (2, 907794510), (3, 605196340), (4, 453897255), (5, 363117804), (6, 302598170), (7, 259369860), (10, 181558902), (12, 151299085), (14, 129684930), (15, 121039268), (20, 90779451), (21, 86456620), (28, 64842465), (30, 60519634), (35, 51873972), (42, 43228310), (60, 30259817), (70, 25936986), (84, 21614155), (105, 17291324), (109, 16656780), (140, 12968493), (210, 8645662), (218, 8328390), (327, 5552260), (420, 4322831), (436, 4164195), (545, 3331356), (654, 2776130), (763, 2379540), (1090, 1665678), (1308, 1388065), (1526, 1189770), (1635, 1110452), (2180, 832839), (2289, 793180), (3052, 594885), (3270, 555226), (3815, 475908), (4578, 396590), (6540, 277613), (7630, 237954), (9156, 198295), (11445, 158636), (15260, 118977), (22890, 79318), (39659, 45780)]