80778920

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{839}}^1$

素因数の和:962

約数の個数: 64

約数和(自身を含む): 190512000

約数和(自身を除く): 109733080

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 83, 116, 145, 166, 232, 290, 332, 415, 580, 664, 830, 839, 1160, 1660, 1678, 2407, 3320, 3356, 4195, 4814, 6712, 8390, 9628, 12035, 16780, 19256, 24070, 24331, 33560, 48140, 48662, 69637, 96280, 97324, 121655, 139274, 194648, 243310, 278548, 348185, 486620, 557096, 696370, 973240, 1392740, 2019473, 2785480, 4038946, 8077892, 10097365, 16155784, 20194730, 40389460, 80778920]

約数ペア:

[(1, 80778920), (2, 40389460), (4, 20194730), (5, 16155784), (8, 10097365), (10, 8077892), (20, 4038946), (29, 2785480), (40, 2019473), (58, 1392740), (83, 973240), (116, 696370), (145, 557096), (166, 486620), (232, 348185), (290, 278548), (332, 243310), (415, 194648), (580, 139274), (664, 121655), (830, 97324), (839, 96280), (1160, 69637), (1660, 48662), (1678, 48140), (2407, 33560), (3320, 24331), (3356, 24070), (4195, 19256), (4814, 16780), (6712, 12035), (8390, 9628)]