20967375

素因数分解:

$3^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1$

素因数の和:82

約数の個数: 128

約数和(自身を含む): 45287424

約数和(自身を除く): 24320049

約数列:

[1, 3, 5, 11, 13, 15, 17, 23, 25, 33, 39, 51, 55, 65, 69, 75, 85, 115, 125, 143, 165, 187, 195, 221, 253, 255, 275, 299, 325, 345, 375, 391, 425, 429, 561, 575, 663, 715, 759, 825, 897, 935, 975, 1105, 1173, 1265, 1275, 1375, 1495, 1625, 1725, 1955, 2125, 2145, 2431, 2805, 2875, 3289, 3315, 3575, 3795, 4125, 4301, 4485, 4675, 4875, 5083, 5525, 5865, 6325, 6375, 7293, 7475, 8625, 9775, 9867, 10725, 12155, 12903, 14025, 15249, 16445, 16575, 17875, 18975, 21505, 22425, 23375, 25415, 27625, 29325, 31625, 36465, 37375, 48875, 49335, 53625, 55913, 60775, 64515, 70125, 76245, 82225, 82875, 94875, 107525, 112125, 127075, 146625, 167739, 182325, 246675, 279565, 303875, 322575, 381225, 411125, 537625, 635375, 838695, 911625, 1233375, 1397825, 1612875, 1906125, 4193475, 6989125, 20967375]

約数ペア:

[(1, 20967375), (3, 6989125), (5, 4193475), (11, 1906125), (13, 1612875), (15, 1397825), (17, 1233375), (23, 911625), (25, 838695), (33, 635375), (39, 537625), (51, 411125), (55, 381225), (65, 322575), (69, 303875), (75, 279565), (85, 246675), (115, 182325), (125, 167739), (143, 146625), (165, 127075), (187, 112125), (195, 107525), (221, 94875), (253, 82875), (255, 82225), (275, 76245), (299, 70125), (325, 64515), (345, 60775), (375, 55913), (391, 53625), (425, 49335), (429, 48875), (561, 37375), (575, 36465), (663, 31625), (715, 29325), (759, 27625), (825, 25415), (897, 23375), (935, 22425), (975, 21505), (1105, 18975), (1173, 17875), (1265, 16575), (1275, 16445), (1375, 15249), (1495, 14025), (1625, 12903), (1725, 12155), (1955, 10725), (2125, 9867), (2145, 9775), (2431, 8625), (2805, 7475), (2875, 7293), (3289, 6375), (3315, 6325), (3575, 5865), (3795, 5525), (4125, 5083), (4301, 4875), (4485, 4675)]