20512142625

素因数分解:

$3^1\times 5^3\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{241}}^1$

素因数の和:381

約数の個数: 192

約数和(自身を含む): 39793628160

約数和(自身を除く): 19281485535

約数列:

[1, 3, 5, 13, 15, 17, 25, 39, 51, 65, 75, 79, 85, 125, 169, 195, 221, 237, 241, 255, 325, 375, 395, 425, 507, 663, 723, 845, 975, 1027, 1105, 1185, 1205, 1275, 1343, 1625, 1975, 2125, 2535, 2873, 3081, 3133, 3315, 3615, 4029, 4097, 4225, 4875, 5135, 5525, 5925, 6025, 6375, 6715, 8619, 9399, 9875, 12291, 12675, 13351, 14365, 15405, 15665, 16575, 17459, 18075, 19039, 20145, 20485, 21125, 25675, 27625, 29625, 30125, 33575, 40053, 40729, 43095, 46995, 52377, 53261, 57117, 61455, 63375, 66755, 71825, 77025, 78325, 82875, 87295, 90375, 95195, 100725, 102425, 122187, 128375, 159783, 167875, 200265, 203645, 215475, 226967, 234975, 247507, 261885, 266305, 285585, 307275, 323663, 333775, 359125, 385125, 391625, 436475, 475975, 503625, 512125, 610935, 680901, 692393, 742521, 798915, 970989, 1001325, 1018225, 1077375, 1134835, 1174875, 1237535, 1309425, 1331525, 1427925, 1536375, 1618315, 1668875, 2077179, 2182375, 2379875, 3054675, 3217591, 3404505, 3461965, 3712605, 3994575, 4207619, 4854945, 5006625, 5091125, 5674175, 6187675, 6547125, 6657625, 7139625, 8091575, 9652773, 10385895, 12622857, 15273375, 16087955, 17022525, 17309825, 18563025, 19972875, 21038095, 24274725, 28370875, 30938375, 40457875, 48263865, 51929475, 54699047, 63114285, 80439775, 85112625, 86549125, 92815125, 105190475, 121373625, 164097141, 241319325, 259647375, 273495235, 315571425, 402198875, 525952375, 820485705, 1206596625, 1367476175, 1577857125, 4102428525, 6837380875, 20512142625]

約数ペア:

[(1, 20512142625), (3, 6837380875), (5, 4102428525), (13, 1577857125), (15, 1367476175), (17, 1206596625), (25, 820485705), (39, 525952375), (51, 402198875), (65, 315571425), (75, 273495235), (79, 259647375), (85, 241319325), (125, 164097141), (169, 121373625), (195, 105190475), (221, 92815125), (237, 86549125), (241, 85112625), (255, 80439775), (325, 63114285), (375, 54699047), (395, 51929475), (425, 48263865), (507, 40457875), (663, 30938375), (723, 28370875), (845, 24274725), (975, 21038095), (1027, 19972875), (1105, 18563025), (1185, 17309825), (1205, 17022525), (1275, 16087955), (1343, 15273375), (1625, 12622857), (1975, 10385895), (2125, 9652773), (2535, 8091575), (2873, 7139625), (3081, 6657625), (3133, 6547125), (3315, 6187675), (3615, 5674175), (4029, 5091125), (4097, 5006625), (4225, 4854945), (4875, 4207619), (5135, 3994575), (5525, 3712605), (5925, 3461965), (6025, 3404505), (6375, 3217591), (6715, 3054675), (8619, 2379875), (9399, 2182375), (9875, 2077179), (12291, 1668875), (12675, 1618315), (13351, 1536375), (14365, 1427925), (15405, 1331525), (15665, 1309425), (16575, 1237535), (17459, 1174875), (18075, 1134835), (19039, 1077375), (20145, 1018225), (20485, 1001325), (21125, 970989), (25675, 798915), (27625, 742521), (29625, 692393), (30125, 680901), (33575, 610935), (40053, 512125), (40729, 503625), (43095, 475975), (46995, 436475), (52377, 391625), (53261, 385125), (57117, 359125), (61455, 333775), (63375, 323663), (66755, 307275), (71825, 285585), (77025, 266305), (78325, 261885), (82875, 247507), (87295, 234975), (90375, 226967), (95195, 215475), (100725, 203645), (102425, 200265), (122187, 167875), (128375, 159783)]