17977520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{659}}^1$

素因数の和:714

約数の個数: 80

約数和(自身を含む): 47139840

約数和(自身を除く): 29162320

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 44, 55, 62, 80, 88, 110, 124, 155, 176, 220, 248, 310, 341, 440, 496, 620, 659, 682, 880, 1240, 1318, 1364, 1705, 2480, 2636, 2728, 3295, 3410, 5272, 5456, 6590, 6820, 7249, 10544, 13180, 13640, 14498, 20429, 26360, 27280, 28996, 36245, 40858, 52720, 57992, 72490, 81716, 102145, 115984, 144980, 163432, 204290, 224719, 289960, 326864, 408580, 449438, 579920, 817160, 898876, 1123595, 1634320, 1797752, 2247190, 3595504, 4494380, 8988760, 17977520]

約数ペア:

[(1, 17977520), (2, 8988760), (4, 4494380), (5, 3595504), (8, 2247190), (10, 1797752), (11, 1634320), (16, 1123595), (20, 898876), (22, 817160), (31, 579920), (40, 449438), (44, 408580), (55, 326864), (62, 289960), (80, 224719), (88, 204290), (110, 163432), (124, 144980), (155, 115984), (176, 102145), (220, 81716), (248, 72490), (310, 57992), (341, 52720), (440, 40858), (496, 36245), (620, 28996), (659, 27280), (682, 26360), (880, 20429), (1240, 14498), (1318, 13640), (1364, 13180), (1705, 10544), (2480, 7249), (2636, 6820), (2728, 6590), (3295, 5456), (3410, 5272)]