64983420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{19001}}^1$

素因数の和:19035

約数の個数: 72

約数和(自身を含む): 207501840

約数和(自身を除く): 142518420

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, 19001, 38002, 57003, 76004, 95005, 114006, 171009, 190010, 228012, 285015, 342018, 361019, 380020, 570030, 684036, 722038, 855045, 1083057, 1140060, 1444076, 1710090, 1805095, 2166114, 3249171, 3420180, 3610190, 4332228, 5415285, 6498342, 7220380, 10830570, 12996684, 16245855, 21661140, 32491710, 64983420]

約数ペア:

[(1, 64983420), (2, 32491710), (3, 21661140), (4, 16245855), (5, 12996684), (6, 10830570), (9, 7220380), (10, 6498342), (12, 5415285), (15, 4332228), (18, 3610190), (19, 3420180), (20, 3249171), (30, 2166114), (36, 1805095), (38, 1710090), (45, 1444076), (57, 1140060), (60, 1083057), (76, 855045), (90, 722038), (95, 684036), (114, 570030), (171, 380020), (180, 361019), (190, 342018), (228, 285015), (285, 228012), (342, 190010), (380, 171009), (570, 114006), (684, 95005), (855, 76004), (1140, 57003), (1710, 38002), (3420, 19001)]