20914250

素因数分解:

$2^1\times 5^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1$

素因数の和:97

約数の個数: 128

約数和(自身を含む): 51217920

約数和(自身を除く): 30303670

約数列:

[1, 2, 5, 7, 10, 14, 17, 19, 25, 34, 35, 37, 38, 50, 70, 74, 85, 95, 119, 125, 133, 170, 175, 185, 190, 238, 250, 259, 266, 323, 350, 370, 425, 475, 518, 595, 629, 646, 665, 703, 850, 875, 925, 950, 1190, 1258, 1295, 1330, 1406, 1615, 1750, 1850, 2125, 2261, 2375, 2590, 2975, 3145, 3230, 3325, 3515, 4250, 4403, 4522, 4625, 4750, 4921, 5950, 6290, 6475, 6650, 7030, 8075, 8806, 9250, 9842, 11305, 11951, 12950, 14875, 15725, 16150, 16625, 17575, 22015, 22610, 23902, 24605, 29750, 31450, 32375, 33250, 35150, 40375, 44030, 49210, 56525, 59755, 64750, 78625, 80750, 83657, 87875, 110075, 113050, 119510, 123025, 157250, 167314, 175750, 220150, 246050, 282625, 298775, 418285, 550375, 565250, 597550, 615125, 836570, 1100750, 1230250, 1493875, 2091425, 2987750, 4182850, 10457125, 20914250]

約数ペア:

[(1, 20914250), (2, 10457125), (5, 4182850), (7, 2987750), (10, 2091425), (14, 1493875), (17, 1230250), (19, 1100750), (25, 836570), (34, 615125), (35, 597550), (37, 565250), (38, 550375), (50, 418285), (70, 298775), (74, 282625), (85, 246050), (95, 220150), (119, 175750), (125, 167314), (133, 157250), (170, 123025), (175, 119510), (185, 113050), (190, 110075), (238, 87875), (250, 83657), (259, 80750), (266, 78625), (323, 64750), (350, 59755), (370, 56525), (425, 49210), (475, 44030), (518, 40375), (595, 35150), (629, 33250), (646, 32375), (665, 31450), (703, 29750), (850, 24605), (875, 23902), (925, 22610), (950, 22015), (1190, 17575), (1258, 16625), (1295, 16150), (1330, 15725), (1406, 14875), (1615, 12950), (1750, 11951), (1850, 11305), (2125, 9842), (2261, 9250), (2375, 8806), (2590, 8075), (2975, 7030), (3145, 6650), (3230, 6475), (3325, 6290), (3515, 5950), (4250, 4921), (4403, 4750), (4522, 4625)]