18512270

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{449}}^1$

素因数の和:513

約数の個数: 64

約数和(自身を含む): 41472000

約数和(自身を除く): 22959730

約数列:

[1, 2, 5, 7, 10, 14, 19, 31, 35, 38, 62, 70, 95, 133, 155, 190, 217, 266, 310, 434, 449, 589, 665, 898, 1085, 1178, 1330, 2170, 2245, 2945, 3143, 4123, 4490, 5890, 6286, 8246, 8531, 13919, 15715, 17062, 20615, 27838, 31430, 41230, 42655, 59717, 69595, 85310, 97433, 119434, 139190, 194866, 264461, 298585, 487165, 528922, 597170, 974330, 1322305, 1851227, 2644610, 3702454, 9256135, 18512270]

約数ペア:

[(1, 18512270), (2, 9256135), (5, 3702454), (7, 2644610), (10, 1851227), (14, 1322305), (19, 974330), (31, 597170), (35, 528922), (38, 487165), (62, 298585), (70, 264461), (95, 194866), (133, 139190), (155, 119434), (190, 97433), (217, 85310), (266, 69595), (310, 59717), (434, 42655), (449, 41230), (589, 31430), (665, 27838), (898, 20615), (1085, 17062), (1178, 15715), (1330, 13919), (2170, 8531), (2245, 8246), (2945, 6286), (3143, 5890), (4123, 4490)]