20463516

素因数分解:

$2^2\times 3^5\times {\mathrm{37}}^1\times {\mathrm{569}}^1$

素因数の和:625

約数の個数: 72

約数和(自身を含む): 55189680

約数和(自身を除く): 34726164

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 37, 54, 74, 81, 108, 111, 148, 162, 222, 243, 324, 333, 444, 486, 569, 666, 972, 999, 1138, 1332, 1707, 1998, 2276, 2997, 3414, 3996, 5121, 5994, 6828, 8991, 10242, 11988, 15363, 17982, 20484, 21053, 30726, 35964, 42106, 46089, 61452, 63159, 84212, 92178, 126318, 138267, 184356, 189477, 252636, 276534, 378954, 553068, 568431, 757908, 1136862, 1705293, 2273724, 3410586, 5115879, 6821172, 10231758, 20463516]

約数ペア:

[(1, 20463516), (2, 10231758), (3, 6821172), (4, 5115879), (6, 3410586), (9, 2273724), (12, 1705293), (18, 1136862), (27, 757908), (36, 568431), (37, 553068), (54, 378954), (74, 276534), (81, 252636), (108, 189477), (111, 184356), (148, 138267), (162, 126318), (222, 92178), (243, 84212), (324, 63159), (333, 61452), (444, 46089), (486, 42106), (569, 35964), (666, 30726), (972, 21053), (999, 20484), (1138, 17982), (1332, 15363), (1707, 11988), (1998, 10242), (2276, 8991), (2997, 6828), (3414, 5994), (3996, 5121)]