239664100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{313}}^1$

素因数の和:390

約数の個数: 144

約数和(自身を含む): 610516480

約数和(自身を除く): 370852380

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 25, 26, 31, 38, 50, 52, 62, 65, 76, 95, 100, 124, 130, 155, 190, 247, 260, 310, 313, 325, 380, 403, 475, 494, 589, 620, 626, 650, 775, 806, 950, 988, 1178, 1235, 1252, 1300, 1550, 1565, 1612, 1900, 2015, 2356, 2470, 2945, 3100, 3130, 4030, 4069, 4940, 5890, 5947, 6175, 6260, 7657, 7825, 8060, 8138, 9703, 10075, 11780, 11894, 12350, 14725, 15314, 15650, 16276, 19406, 20150, 20345, 23788, 24700, 29450, 29735, 30628, 31300, 38285, 38812, 40300, 40690, 48515, 58900, 59470, 76570, 77311, 81380, 97030, 101725, 118940, 126139, 148675, 153140, 154622, 184357, 191425, 194060, 203450, 242575, 252278, 297350, 309244, 368714, 382850, 386555, 406900, 485150, 504556, 594700, 630695, 737428, 765700, 773110, 921785, 970300, 1261390, 1546220, 1843570, 1932775, 2396641, 2522780, 3153475, 3687140, 3865550, 4608925, 4793282, 6306950, 7731100, 9217850, 9586564, 11983205, 12613900, 18435700, 23966410, 47932820, 59916025, 119832050, 239664100]

約数ペア:

[(1, 239664100), (2, 119832050), (4, 59916025), (5, 47932820), (10, 23966410), (13, 18435700), (19, 12613900), (20, 11983205), (25, 9586564), (26, 9217850), (31, 7731100), (38, 6306950), (50, 4793282), (52, 4608925), (62, 3865550), (65, 3687140), (76, 3153475), (95, 2522780), (100, 2396641), (124, 1932775), (130, 1843570), (155, 1546220), (190, 1261390), (247, 970300), (260, 921785), (310, 773110), (313, 765700), (325, 737428), (380, 630695), (403, 594700), (475, 504556), (494, 485150), (589, 406900), (620, 386555), (626, 382850), (650, 368714), (775, 309244), (806, 297350), (950, 252278), (988, 242575), (1178, 203450), (1235, 194060), (1252, 191425), (1300, 184357), (1550, 154622), (1565, 153140), (1612, 148675), (1900, 126139), (2015, 118940), (2356, 101725), (2470, 97030), (2945, 81380), (3100, 77311), (3130, 76570), (4030, 59470), (4069, 58900), (4940, 48515), (5890, 40690), (5947, 40300), (6175, 38812), (6260, 38285), (7657, 31300), (7825, 30628), (8060, 29735), (8138, 29450), (9703, 24700), (10075, 23788), (11780, 20345), (11894, 20150), (12350, 19406), (14725, 16276), (15314, 15650)]