21451680

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{14897}}^1$

素因数の和:14918

約数の個数: 72

約数和(自身を含む): 73208772

約数和(自身を除く): 51757092

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 14897, 29794, 44691, 59588, 74485, 89382, 119176, 134073, 148970, 178764, 223455, 238352, 268146, 297940, 357528, 446910, 476704, 536292, 595880, 670365, 715056, 893820, 1072584, 1191760, 1340730, 1430112, 1787640, 2145168, 2383520, 2681460, 3575280, 4290336, 5362920, 7150560, 10725840, 21451680]

約数ペア:

[(1, 21451680), (2, 10725840), (3, 7150560), (4, 5362920), (5, 4290336), (6, 3575280), (8, 2681460), (9, 2383520), (10, 2145168), (12, 1787640), (15, 1430112), (16, 1340730), (18, 1191760), (20, 1072584), (24, 893820), (30, 715056), (32, 670365), (36, 595880), (40, 536292), (45, 476704), (48, 446910), (60, 357528), (72, 297940), (80, 268146), (90, 238352), (96, 223455), (120, 178764), (144, 148970), (160, 134073), (180, 119176), (240, 89382), (288, 74485), (360, 59588), (480, 44691), (720, 29794), (1440, 14897)]