71823420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{21001}}^1$

素因数の和:21035

約数の個数: 72

約数和(自身を含む): 229341840

約数和(自身を除く): 157518420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 21001, 42002, 63003, 84004, 105005, 126006, 189009, 210010, 252012, 315015, 378018, 399019, 420020, 630030, 756036, 798038, 945045, 1197057, 1260060, 1596076, 1890090, 1995095, 2394114, 3591171, 3780180, 3990190, 4788228, 5985285, 7182342, 7980380, 11970570, 14364684, 17955855, 23941140, 35911710, 71823420]

約数ペア:

[(1, 71823420), (2, 35911710), (3, 23941140), (4, 17955855), (5, 14364684), (6, 11970570), (9, 7980380), (10, 7182342), (12, 5985285), (15, 4788228), (18, 3990190), (19, 3780180), (20, 3591171), (30, 2394114), (36, 1995095), (38, 1890090), (45, 1596076), (57, 1260060), (60, 1197057), (76, 945045), (90, 798038), (95, 756036), (114, 630030), (171, 420020), (180, 399019), (190, 378018), (228, 315015), (285, 252012), (342, 210010), (380, 189009), (570, 126006), (684, 105005), (855, 84004), (1140, 63003), (1710, 42002), (3420, 21001)]