78773900

素因数分解:

$2^2\times 5^2\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{167}}^1$

素因数の和:323

約数の個数: 72

約数和(自身を含む): 177176160

約数和(自身を除く): 98402260

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 53, 89, 100, 106, 167, 178, 212, 265, 334, 356, 445, 530, 668, 835, 890, 1060, 1325, 1670, 1780, 2225, 2650, 3340, 4175, 4450, 4717, 5300, 8350, 8851, 8900, 9434, 14863, 16700, 17702, 18868, 23585, 29726, 35404, 44255, 47170, 59452, 74315, 88510, 94340, 117925, 148630, 177020, 221275, 235850, 297260, 371575, 442550, 471700, 743150, 787739, 885100, 1486300, 1575478, 3150956, 3938695, 7877390, 15754780, 19693475, 39386950, 78773900]

約数ペア:

[(1, 78773900), (2, 39386950), (4, 19693475), (5, 15754780), (10, 7877390), (20, 3938695), (25, 3150956), (50, 1575478), (53, 1486300), (89, 885100), (100, 787739), (106, 743150), (167, 471700), (178, 442550), (212, 371575), (265, 297260), (334, 235850), (356, 221275), (445, 177020), (530, 148630), (668, 117925), (835, 94340), (890, 88510), (1060, 74315), (1325, 59452), (1670, 47170), (1780, 44255), (2225, 35404), (2650, 29726), (3340, 23585), (4175, 18868), (4450, 17702), (4717, 16700), (5300, 14863), (8350, 9434), (8851, 8900)]