249860000

素因数分解:

$2^5\times 5^4\times {\mathrm{13}}^1\times {\mathrm{31}}^2$

素因数の和:105

約数の個数: 180

約数和(自身を含む): 684020106

約数和(自身を除く): 434160106

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 31, 32, 40, 50, 52, 62, 65, 80, 100, 104, 124, 125, 130, 155, 160, 200, 208, 248, 250, 260, 310, 325, 400, 403, 416, 496, 500, 520, 620, 625, 650, 775, 800, 806, 961, 992, 1000, 1040, 1240, 1250, 1300, 1550, 1612, 1625, 1922, 2000, 2015, 2080, 2480, 2500, 2600, 3100, 3224, 3250, 3844, 3875, 4000, 4030, 4805, 4960, 5000, 5200, 6200, 6448, 6500, 7688, 7750, 8060, 8125, 9610, 10000, 10075, 10400, 12400, 12493, 12896, 13000, 15376, 15500, 16120, 16250, 19220, 19375, 20000, 20150, 24025, 24800, 24986, 26000, 30752, 31000, 32240, 32500, 38440, 38750, 40300, 48050, 49972, 50375, 52000, 62000, 62465, 64480, 65000, 76880, 77500, 80600, 96100, 99944, 100750, 120125, 124000, 124930, 130000, 153760, 155000, 161200, 192200, 199888, 201500, 240250, 249860, 251875, 260000, 310000, 312325, 322400, 384400, 399776, 403000, 480500, 499720, 503750, 600625, 620000, 624650, 768800, 806000, 961000, 999440, 1007500, 1201250, 1249300, 1561625, 1612000, 1922000, 1998880, 2015000, 2402500, 2498600, 3123250, 3844000, 4030000, 4805000, 4997200, 6246500, 7808125, 8060000, 9610000, 9994400, 12493000, 15616250, 19220000, 24986000, 31232500, 49972000, 62465000, 124930000, 249860000]

約数ペア:

[(1, 249860000), (2, 124930000), (4, 62465000), (5, 49972000), (8, 31232500), (10, 24986000), (13, 19220000), (16, 15616250), (20, 12493000), (25, 9994400), (26, 9610000), (31, 8060000), (32, 7808125), (40, 6246500), (50, 4997200), (52, 4805000), (62, 4030000), (65, 3844000), (80, 3123250), (100, 2498600), (104, 2402500), (124, 2015000), (125, 1998880), (130, 1922000), (155, 1612000), (160, 1561625), (200, 1249300), (208, 1201250), (248, 1007500), (250, 999440), (260, 961000), (310, 806000), (325, 768800), (400, 624650), (403, 620000), (416, 600625), (496, 503750), (500, 499720), (520, 480500), (620, 403000), (625, 399776), (650, 384400), (775, 322400), (800, 312325), (806, 310000), (961, 260000), (992, 251875), (1000, 249860), (1040, 240250), (1240, 201500), (1250, 199888), (1300, 192200), (1550, 161200), (1612, 155000), (1625, 153760), (1922, 130000), (2000, 124930), (2015, 124000), (2080, 120125), (2480, 100750), (2500, 99944), (2600, 96100), (3100, 80600), (3224, 77500), (3250, 76880), (3844, 65000), (3875, 64480), (4000, 62465), (4030, 62000), (4805, 52000), (4960, 50375), (5000, 49972), (5200, 48050), (6200, 40300), (6448, 38750), (6500, 38440), (7688, 32500), (7750, 32240), (8060, 31000), (8125, 30752), (9610, 26000), (10000, 24986), (10075, 24800), (10400, 24025), (12400, 20150), (12493, 20000), (12896, 19375), (13000, 19220), (15376, 16250), (15500, 16120)]