20753910

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{2591}}^1$

素因数の和:2693

約数の個数: 48

約数和(自身を含む): 54587520

約数和(自身を除く): 33833610

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 89, 90, 178, 267, 445, 534, 801, 890, 1335, 1602, 2591, 2670, 4005, 5182, 7773, 8010, 12955, 15546, 23319, 25910, 38865, 46638, 77730, 116595, 230599, 233190, 461198, 691797, 1152995, 1383594, 2075391, 2305990, 3458985, 4150782, 6917970, 10376955, 20753910]

約数ペア:

[(1, 20753910), (2, 10376955), (3, 6917970), (5, 4150782), (6, 3458985), (9, 2305990), (10, 2075391), (15, 1383594), (18, 1152995), (30, 691797), (45, 461198), (89, 233190), (90, 230599), (178, 116595), (267, 77730), (445, 46638), (534, 38865), (801, 25910), (890, 23319), (1335, 15546), (1602, 12955), (2591, 8010), (2670, 7773), (4005, 5182)]