1376915840

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{69401}}^1$

素因数の和:69451

約数の個数: 64

約数和(自身を含む): 3397921920

約数和(自身を除く): 2021006080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1984, 2480, 3968, 4960, 9920, 19840, 69401, 138802, 277604, 347005, 555208, 694010, 1110416, 1388020, 2151431, 2220832, 2776040, 4302862, 4441664, 5552080, 8605724, 8883328, 10757155, 11104160, 17211448, 21514310, 22208320, 34422896, 43028620, 44416640, 68845792, 86057240, 137691584, 172114480, 275383168, 344228960, 688457920, 1376915840]

約数ペア:

[(1, 1376915840), (2, 688457920), (4, 344228960), (5, 275383168), (8, 172114480), (10, 137691584), (16, 86057240), (20, 68845792), (31, 44416640), (32, 43028620), (40, 34422896), (62, 22208320), (64, 21514310), (80, 17211448), (124, 11104160), (128, 10757155), (155, 8883328), (160, 8605724), (248, 5552080), (310, 4441664), (320, 4302862), (496, 2776040), (620, 2220832), (640, 2151431), (992, 1388020), (1240, 1110416), (1984, 694010), (2480, 555208), (3968, 347005), (4960, 277604), (9920, 138802), (19840, 69401)]