81963375

素因数分解:

$3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1$

素因数の和:114

約数の個数: 128

約数和(自身を含む): 166053888

約数和(自身を除く): 84090513

約数列:

[1, 3, 5, 13, 15, 17, 23, 25, 39, 43, 51, 65, 69, 75, 85, 115, 125, 129, 195, 215, 221, 255, 299, 325, 345, 375, 391, 425, 559, 575, 645, 663, 731, 897, 975, 989, 1075, 1105, 1173, 1275, 1495, 1625, 1677, 1725, 1955, 2125, 2193, 2795, 2875, 2967, 3225, 3315, 3655, 4485, 4875, 4945, 5083, 5375, 5525, 5865, 6375, 7475, 8385, 8625, 9503, 9775, 10965, 12857, 13975, 14835, 15249, 16125, 16575, 16813, 18275, 22425, 24725, 25415, 27625, 28509, 29325, 37375, 38571, 41925, 47515, 48875, 50439, 54825, 64285, 69875, 74175, 76245, 82875, 84065, 91375, 112125, 123625, 127075, 142545, 146625, 192855, 209625, 218569, 237575, 252195, 274125, 321425, 370875, 381225, 420325, 635375, 655707, 712725, 964275, 1092845, 1187875, 1260975, 1607125, 1906125, 2101625, 3278535, 3563625, 4821375, 5464225, 6304875, 16392675, 27321125, 81963375]

約数ペア:

[(1, 81963375), (3, 27321125), (5, 16392675), (13, 6304875), (15, 5464225), (17, 4821375), (23, 3563625), (25, 3278535), (39, 2101625), (43, 1906125), (51, 1607125), (65, 1260975), (69, 1187875), (75, 1092845), (85, 964275), (115, 712725), (125, 655707), (129, 635375), (195, 420325), (215, 381225), (221, 370875), (255, 321425), (299, 274125), (325, 252195), (345, 237575), (375, 218569), (391, 209625), (425, 192855), (559, 146625), (575, 142545), (645, 127075), (663, 123625), (731, 112125), (897, 91375), (975, 84065), (989, 82875), (1075, 76245), (1105, 74175), (1173, 69875), (1275, 64285), (1495, 54825), (1625, 50439), (1677, 48875), (1725, 47515), (1955, 41925), (2125, 38571), (2193, 37375), (2795, 29325), (2875, 28509), (2967, 27625), (3225, 25415), (3315, 24725), (3655, 22425), (4485, 18275), (4875, 16813), (4945, 16575), (5083, 16125), (5375, 15249), (5525, 14835), (5865, 13975), (6375, 12857), (7475, 10965), (8385, 9775), (8625, 9503)]