20192900

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{317}}^1$

素因数の和:358

約数の個数: 108

約数和(自身を含む): 55066788

約数和(自身を除く): 34873888

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 25, 26, 28, 35, 49, 50, 52, 65, 70, 91, 98, 100, 130, 140, 175, 182, 196, 245, 260, 317, 325, 350, 364, 455, 490, 634, 637, 650, 700, 910, 980, 1225, 1268, 1274, 1300, 1585, 1820, 2219, 2275, 2450, 2548, 3170, 3185, 4121, 4438, 4550, 4900, 6340, 6370, 7925, 8242, 8876, 9100, 11095, 12740, 15533, 15850, 15925, 16484, 20605, 22190, 28847, 31066, 31700, 31850, 41210, 44380, 55475, 57694, 62132, 63700, 77665, 82420, 103025, 110950, 115388, 144235, 155330, 201929, 206050, 221900, 288470, 310660, 388325, 403858, 412100, 576940, 721175, 776650, 807716, 1009645, 1442350, 1553300, 2019290, 2884700, 4038580, 5048225, 10096450, 20192900]

約数ペア:

[(1, 20192900), (2, 10096450), (4, 5048225), (5, 4038580), (7, 2884700), (10, 2019290), (13, 1553300), (14, 1442350), (20, 1009645), (25, 807716), (26, 776650), (28, 721175), (35, 576940), (49, 412100), (50, 403858), (52, 388325), (65, 310660), (70, 288470), (91, 221900), (98, 206050), (100, 201929), (130, 155330), (140, 144235), (175, 115388), (182, 110950), (196, 103025), (245, 82420), (260, 77665), (317, 63700), (325, 62132), (350, 57694), (364, 55475), (455, 44380), (490, 41210), (634, 31850), (637, 31700), (650, 31066), (700, 28847), (910, 22190), (980, 20605), (1225, 16484), (1268, 15925), (1274, 15850), (1300, 15533), (1585, 12740), (1820, 11095), (2219, 9100), (2275, 8876), (2450, 8242), (2548, 7925), (3170, 6370), (3185, 6340), (4121, 4900), (4438, 4550)]