28591875

素因数分解:

$3^2\times 5^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1$

素因数の和:79

約数の個数: 120

約数和(自身を含む): 61405344

約数和(自身を除く): 32813469

約数列:

[1, 3, 5, 9, 13, 15, 17, 23, 25, 39, 45, 51, 65, 69, 75, 85, 115, 117, 125, 153, 195, 207, 221, 225, 255, 299, 325, 345, 375, 391, 425, 575, 585, 625, 663, 765, 897, 975, 1035, 1105, 1125, 1173, 1275, 1495, 1625, 1725, 1875, 1955, 1989, 2125, 2691, 2875, 2925, 3315, 3519, 3825, 4485, 4875, 5083, 5175, 5525, 5625, 5865, 6375, 7475, 8125, 8625, 9775, 9945, 10625, 13455, 14375, 14625, 15249, 16575, 17595, 19125, 22425, 24375, 25415, 25875, 27625, 29325, 31875, 37375, 43125, 45747, 48875, 49725, 67275, 73125, 76245, 82875, 87975, 95625, 112125, 127075, 129375, 138125, 146625, 186875, 228735, 244375, 248625, 336375, 381225, 414375, 439875, 560625, 635375, 733125, 1143675, 1243125, 1681875, 1906125, 2199375, 3176875, 5718375, 9530625, 28591875]

約数ペア:

[(1, 28591875), (3, 9530625), (5, 5718375), (9, 3176875), (13, 2199375), (15, 1906125), (17, 1681875), (23, 1243125), (25, 1143675), (39, 733125), (45, 635375), (51, 560625), (65, 439875), (69, 414375), (75, 381225), (85, 336375), (115, 248625), (117, 244375), (125, 228735), (153, 186875), (195, 146625), (207, 138125), (221, 129375), (225, 127075), (255, 112125), (299, 95625), (325, 87975), (345, 82875), (375, 76245), (391, 73125), (425, 67275), (575, 49725), (585, 48875), (625, 45747), (663, 43125), (765, 37375), (897, 31875), (975, 29325), (1035, 27625), (1105, 25875), (1125, 25415), (1173, 24375), (1275, 22425), (1495, 19125), (1625, 17595), (1725, 16575), (1875, 15249), (1955, 14625), (1989, 14375), (2125, 13455), (2691, 10625), (2875, 9945), (2925, 9775), (3315, 8625), (3519, 8125), (3825, 7475), (4485, 6375), (4875, 5865), (5083, 5625), (5175, 5525)]