195980000

素因数分解:

$2^5\times 5^4\times {\mathrm{41}}^1\times {\mathrm{239}}^1$

素因数の和:310

約数の個数: 120

約数和(自身を含む): 495966240

約数和(自身を除く): 299986240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 41, 50, 80, 82, 100, 125, 160, 164, 200, 205, 239, 250, 328, 400, 410, 478, 500, 625, 656, 800, 820, 956, 1000, 1025, 1195, 1250, 1312, 1640, 1912, 2000, 2050, 2390, 2500, 3280, 3824, 4000, 4100, 4780, 5000, 5125, 5975, 6560, 7648, 8200, 9560, 9799, 10000, 10250, 11950, 16400, 19120, 19598, 20000, 20500, 23900, 25625, 29875, 32800, 38240, 39196, 41000, 47800, 48995, 51250, 59750, 78392, 82000, 95600, 97990, 102500, 119500, 149375, 156784, 164000, 191200, 195980, 205000, 239000, 244975, 298750, 313568, 391960, 410000, 478000, 489950, 597500, 783920, 820000, 956000, 979900, 1195000, 1224875, 1567840, 1959800, 2390000, 2449750, 3919600, 4780000, 4899500, 6124375, 7839200, 9799000, 12248750, 19598000, 24497500, 39196000, 48995000, 97990000, 195980000]

約数ペア:

[(1, 195980000), (2, 97990000), (4, 48995000), (5, 39196000), (8, 24497500), (10, 19598000), (16, 12248750), (20, 9799000), (25, 7839200), (32, 6124375), (40, 4899500), (41, 4780000), (50, 3919600), (80, 2449750), (82, 2390000), (100, 1959800), (125, 1567840), (160, 1224875), (164, 1195000), (200, 979900), (205, 956000), (239, 820000), (250, 783920), (328, 597500), (400, 489950), (410, 478000), (478, 410000), (500, 391960), (625, 313568), (656, 298750), (800, 244975), (820, 239000), (956, 205000), (1000, 195980), (1025, 191200), (1195, 164000), (1250, 156784), (1312, 149375), (1640, 119500), (1912, 102500), (2000, 97990), (2050, 95600), (2390, 82000), (2500, 78392), (3280, 59750), (3824, 51250), (4000, 48995), (4100, 47800), (4780, 41000), (5000, 39196), (5125, 38240), (5975, 32800), (6560, 29875), (7648, 25625), (8200, 23900), (9560, 20500), (9799, 20000), (10000, 19598), (10250, 19120), (11950, 16400)]