19912320760

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{173}}^1\times {\mathrm{70183}}^1$

素因数の和:70408

約数の個数: 64

約数和(自身を含む): 46161420480

約数和(自身を除く): 26249099720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 173, 205, 328, 346, 410, 692, 820, 865, 1384, 1640, 1730, 3460, 6920, 7093, 14186, 28372, 35465, 56744, 70183, 70930, 140366, 141860, 280732, 283720, 350915, 561464, 701830, 1403660, 2807320, 2877503, 5755006, 11510012, 12141659, 14387515, 23020024, 24283318, 28775030, 48566636, 57550060, 60708295, 97133272, 115100120, 121416590, 242833180, 485666360, 497808019, 995616038, 1991232076, 2489040095, 3982464152, 4978080190, 9956160380, 19912320760]

約数ペア:

[(1, 19912320760), (2, 9956160380), (4, 4978080190), (5, 3982464152), (8, 2489040095), (10, 1991232076), (20, 995616038), (40, 497808019), (41, 485666360), (82, 242833180), (164, 121416590), (173, 115100120), (205, 97133272), (328, 60708295), (346, 57550060), (410, 48566636), (692, 28775030), (820, 24283318), (865, 23020024), (1384, 14387515), (1640, 12141659), (1730, 11510012), (3460, 5755006), (6920, 2877503), (7093, 2807320), (14186, 1403660), (28372, 701830), (35465, 561464), (56744, 350915), (70183, 283720), (70930, 280732), (140366, 141860)]