812706050

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{199}}^1$

素因数の和:388

約数の個数: 96

約数和(自身を含む): 1679059200

約数和(自身を除く): 866353150

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 61, 65, 103, 122, 130, 199, 206, 305, 325, 398, 515, 610, 650, 793, 995, 1030, 1339, 1525, 1586, 1990, 2575, 2587, 2678, 3050, 3965, 4975, 5150, 5174, 6283, 6695, 7930, 9950, 12139, 12566, 12935, 13390, 19825, 20497, 24278, 25870, 31415, 33475, 39650, 40994, 60695, 62830, 64675, 66950, 81679, 102485, 121390, 129350, 157075, 157807, 163358, 204970, 266461, 303475, 314150, 315614, 408395, 512425, 532922, 606950, 789035, 816790, 1024850, 1250317, 1332305, 1578070, 2041975, 2500634, 2664610, 3945175, 4083950, 6251585, 6661525, 7890350, 12503170, 13323050, 16254121, 31257925, 32508242, 62515850, 81270605, 162541210, 406353025, 812706050]

約数ペア:

[(1, 812706050), (2, 406353025), (5, 162541210), (10, 81270605), (13, 62515850), (25, 32508242), (26, 31257925), (50, 16254121), (61, 13323050), (65, 12503170), (103, 7890350), (122, 6661525), (130, 6251585), (199, 4083950), (206, 3945175), (305, 2664610), (325, 2500634), (398, 2041975), (515, 1578070), (610, 1332305), (650, 1250317), (793, 1024850), (995, 816790), (1030, 789035), (1339, 606950), (1525, 532922), (1586, 512425), (1990, 408395), (2575, 315614), (2587, 314150), (2678, 303475), (3050, 266461), (3965, 204970), (4975, 163358), (5150, 157807), (5174, 157075), (6283, 129350), (6695, 121390), (7930, 102485), (9950, 81679), (12139, 66950), (12566, 64675), (12935, 62830), (13390, 60695), (19825, 40994), (20497, 39650), (24278, 33475), (25870, 31415)]