71971920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{99961}}^1$

素因数の和:99980

約数の個数: 60

約数和(自身を含む): 241708116

約数和(自身を除く): 169736196

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 99961, 199922, 299883, 399844, 499805, 599766, 799688, 899649, 999610, 1199532, 1499415, 1599376, 1799298, 1999220, 2399064, 2998830, 3598596, 3998440, 4498245, 4798128, 5997660, 7197192, 7996880, 8996490, 11995320, 14394384, 17992980, 23990640, 35985960, 71971920]

約数ペア:

[(1, 71971920), (2, 35985960), (3, 23990640), (4, 17992980), (5, 14394384), (6, 11995320), (8, 8996490), (9, 7996880), (10, 7197192), (12, 5997660), (15, 4798128), (16, 4498245), (18, 3998440), (20, 3598596), (24, 2998830), (30, 2399064), (36, 1999220), (40, 1799298), (45, 1599376), (48, 1499415), (60, 1199532), (72, 999610), (80, 899649), (90, 799688), (120, 599766), (144, 499805), (180, 399844), (240, 299883), (360, 199922), (720, 99961)]