380098280

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1\times {\mathrm{499}}^1$

素因数の和:786

約数の個数: 64

約数和(自身を含む): 869400000

約数和(自身を除く): 489301720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 139, 274, 278, 499, 548, 556, 685, 695, 998, 1096, 1112, 1370, 1390, 1996, 2495, 2740, 2780, 3992, 4990, 5480, 5560, 9980, 19043, 19960, 38086, 68363, 69361, 76172, 95215, 136726, 138722, 152344, 190430, 273452, 277444, 341815, 346805, 380860, 546904, 554888, 683630, 693610, 761720, 1367260, 1387220, 2734520, 2774440, 9502457, 19004914, 38009828, 47512285, 76019656, 95024570, 190049140, 380098280]

約数ペア:

[(1, 380098280), (2, 190049140), (4, 95024570), (5, 76019656), (8, 47512285), (10, 38009828), (20, 19004914), (40, 9502457), (137, 2774440), (139, 2734520), (274, 1387220), (278, 1367260), (499, 761720), (548, 693610), (556, 683630), (685, 554888), (695, 546904), (998, 380860), (1096, 346805), (1112, 341815), (1370, 277444), (1390, 273452), (1996, 190430), (2495, 152344), (2740, 138722), (2780, 136726), (3992, 95215), (4990, 76172), (5480, 69361), (5560, 68363), (9980, 38086), (19043, 19960)]