20977530

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{523}}^1$

素因数の和:731

約数の個数: 64

約数和(自身を含む): 57950208

約数和(自身を除く): 36972678

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 191, 210, 382, 523, 573, 955, 1046, 1146, 1337, 1569, 1910, 2615, 2674, 2865, 3138, 3661, 4011, 5230, 5730, 6685, 7322, 7845, 8022, 10983, 13370, 15690, 18305, 20055, 21966, 36610, 40110, 54915, 99893, 109830, 199786, 299679, 499465, 599358, 699251, 998930, 1398502, 1498395, 2097753, 2996790, 3496255, 4195506, 6992510, 10488765, 20977530]

約数ペア:

[(1, 20977530), (2, 10488765), (3, 6992510), (5, 4195506), (6, 3496255), (7, 2996790), (10, 2097753), (14, 1498395), (15, 1398502), (21, 998930), (30, 699251), (35, 599358), (42, 499465), (70, 299679), (105, 199786), (191, 109830), (210, 99893), (382, 54915), (523, 40110), (573, 36610), (955, 21966), (1046, 20055), (1146, 18305), (1337, 15690), (1569, 13370), (1910, 10983), (2615, 8022), (2674, 7845), (2865, 7322), (3138, 6685), (3661, 5730), (4011, 5230)]