2001000040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{20147}}^1$

素因数の和:20362

約数の個数: 64

約数和(自身を含む): 4874204160

約数和(自身を除く): 2873204120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 191, 260, 382, 520, 764, 955, 1528, 1910, 2483, 3820, 4966, 7640, 9932, 12415, 19864, 20147, 24830, 40294, 49660, 80588, 99320, 100735, 161176, 201470, 261911, 402940, 523822, 805880, 1047644, 1309555, 2095288, 2619110, 3848077, 5238220, 7696154, 10476440, 15392308, 19240385, 30784616, 38480770, 50025001, 76961540, 100050002, 153923080, 200100004, 250125005, 400200008, 500250010, 1000500020, 2001000040]

約数ペア:

[(1, 2001000040), (2, 1000500020), (4, 500250010), (5, 400200008), (8, 250125005), (10, 200100004), (13, 153923080), (20, 100050002), (26, 76961540), (40, 50025001), (52, 38480770), (65, 30784616), (104, 19240385), (130, 15392308), (191, 10476440), (260, 7696154), (382, 5238220), (520, 3848077), (764, 2619110), (955, 2095288), (1528, 1309555), (1910, 1047644), (2483, 805880), (3820, 523822), (4966, 402940), (7640, 261911), (9932, 201470), (12415, 161176), (19864, 100735), (20147, 99320), (24830, 80588), (40294, 49660)]